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The islands that make up the Italian city of Venice and the surrounding Venetian Lagoon are pictured in this image

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Venice

Venice is a city in Italy built on little islands. Instead of streets for cars, it has canals full of boats. People walk over hundreds of bridges.

Venice, in northern Italy, is spread over 118 small islands in a shallow lagoon off the Adriatic Sea. There are no cars in the old city: people walk or travel by boat along its canals, past palaces and over about 400 bridges. High tides sometimes flood its squares, so giant gates now protect the lagoon.

Venice grew on 118 islets in the Venetian Lagoon into a maritime republic that was, for centuries, Europe's great link with Asia, until it fell in 1797. A UNESCO World Heritage Site since 1987, it now faces subsidence, rising seas and the acqua alta; since 2020 the MOSE barriers' 78 gates have closed the lagoon inlets against high tides.

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Photo: European Space Agency, CC BY-SA 3.0 igo, via Wikimedia Commons

Discover Venice

Venice is a city in Italy.

It is built on lots of little islands in shallow water. The streets are canals, filled with boats. People walk everywhere, over hundreds of little bridges.

Venice is a city in northern Italy, at the top of the Adriatic Sea. Its old center is spread over 118 small islands in a shallow, crescent-shaped lagoon, joined together by canals and about 400 bridges. Cars cannot drive there, so people walk or ride boats.

The whole city area, called the comune, also includes towns on the mainland, such as Mestre. About 249,000 people lived in the comune in 2025, but by the early 2000s fewer than one in four of them lived in the old island city.

Venice, capital of the Veneto region, lies on an archipelago in the Laguna Veneta, a crescent-shaped lagoon about 51 km long at the northwestern end of the Adriatic. UNESCO describes the historic city as spread over 118 small islands; Britannica counts more than 200 original canals and about 400 bridges.

The administrative comune reaches around the lagoon's 145 km perimeter, taking in the mainland districts of Mestre and Marghera and the Marco Polo airport. Italy's statistics office, ISTAT, counted 249,490 residents in the comune in 2025. The historic center's share has fallen steadily: about three-fourths at the start of the 20th century, more than half at mid-century, and less than one-fourth by the early 21st century.

Country
Italy (capital of the Veneto region)
People in the whole comune (2025)
about 249,000
Islands in the historic city
118
Bridges
about 400
The islands that make up the Italian city of Venice and the surrounding Venetian Lagoon are pictured in this image
Photo: European Space Agency, CC BY-SA 3.0 igo, via Wikimedia Commons

Famous places

Venice has a giant square called St. Mark's Square.

At one end is a church with round domes and shiny gold pictures. A tall brick bell tower stands nearby. The biggest canal curves through the city like a long letter S.

St. Mark's Square is a huge paved square lined with arches. At one end stands St. Mark's Basilica, finished in 1071, with five arched doorways, five domes and shining mosaics above its arches. Next to it rises the Campanile, a 99-meter brick bell tower.

The Grand Canal, Venice's main waterway, curves through the city in a giant backward S for more than 3 kilometers. Palaces built by rich merchant families line its banks. Only four bridges cross it; the most famous is the Rialto Bridge, from about 1590.

The Piazza San Marco, a vast paved and arcaded square, opens before the five portals of St. Mark's Basilica. The first church on the site was begun in 829; the present basilica, distinctly Byzantine in design and topped by five domes, was completed in 1071, and over the centuries sculpture, mosaics and treasures were added. The 99 m Campanile collapsed in 1902 and was rebuilt around a reinforced-concrete core by 1912.

The Grand Canal describes a backward S more than two miles (3 km) long, from the railway station to the basin before the Doges' Palace, 30 to 70 m wide and lined with merchants' palaces and warehouses. Four bridges span it: the Rialto Bridge by Antonio da Ponte (about 1590), the Accademia (1930s), the marble Scalzi Bridge (1932) and Santiago Calatrava's Constitution Bridge (2008). The Teatro La Fenice is an opera house.

St. Mark's Basilica
present church completed 1071
Campanile (bell tower)
99 m; rebuilt 1902–1912
Rialto Bridge
about 1590
Grand Canal
more than 3 km long, 30–70 m wide
Photo of St Mark's Basilica
Photo: Nino Barbieri, CC BY-SA 2.5, via Wikimedia Commons

A republic on the water

Long ago, fishers and salt workers lived on the lagoon islands.

Then more people came to stay safe. They joined the islands with bridges and canals. Venice grew rich by sending ships to trade with faraway lands.

At first, the islands of the lagoon were home to fishers and salt workers. From the year 568, raids on the mainland drove many more people onto the islands, where the water kept them safe. The islanders chose a leader called the doge.

Venice became a sea power. Its ships carried goods between Europe and Asia, and its great shipyard, the Arsenal, built the ships. For about a thousand years Venice ruled itself as a republic. That ended in 1797, when Napoleon's armies came and the last doge was removed from power. In 1866 Venice became part of Italy.

Settlement in the lagoon predates Roman times, but the present city took shape in the early 7th century, as mainlanders fleeing the Lombard incursions that began in 568 joined fishing and salt-working communities on the higher mudflats. Rivo Alto, later Rialto, became the center, linking the islands with bridges and canals under an elected doge; by 840–841 the doge was negotiating treaties in his own name.

Venice grew into the greatest seaport of late medieval Europe and its commercial link with Asia; the Fourth Crusade, which sacked Constantinople in 1204 with the doge Enrico Dandolo among its leaders, brought it a share of Byzantine territory. From the early 15th century it also ruled a large mainland empire. The republic ended when the last doge, Ludovico Manin, was deposed on May 12, 1797; Venice passed to Austria, and in 1866 it was ceded to Italy. In 1846 a railway causeway nearly 3 km long, on 222 arches, joined it to the mainland.

Canal Grande and Rialto Bridge, Venice - part of UNESCO World Heritage Site Ref
Photo: Martin Falbisoner, CC BY-SA 4.0, via Wikimedia Commons

Through the years

Boats and bridges

In Venice, people walk or ride boats.

Water buses carry people along the canals. Long black boats called gondolas glide by. Even the garbage and the ambulance travel by boat!

Venice is a walking city. Cars are banned except in two big parking areas, so people go everywhere on foot, along canal banks and over about 400 bridges.

On the water, public water buses called vaporetti work like city buses, and water taxis zip about. Special boats carry fruit and vegetables, garbage, luggage, police and even ambulances. Only several hundred gondolas, long black boats rowed by a gondolier, are left, and a few still ferry people across the Grand Canal. A railway causeway, built in 1846, links the islands to the mainland.

Britannica calls Venice a walking city: apart from the large parking areas at Piazzale Roma and on the Lido, automobiles are banned, and any point can be reached on foot along canal banks, paved streets, squares and some 400 bridges, many of them 19th-century wrought-iron replacements for arched marble ones.

The waterways carry everything else: vaporetti run by the municipal transport company, private motor-launch taxis, and barges for fruit and vegetables, garbage and tourists' baggage, alongside ambulance and police launches. Only several hundred keelless gondolas remain, a few serving as Grand Canal ferries. The 1846 railway causeway, nearly 3 km long on 222 arches, ended the city's isolation from the mainland, and the Constitution Bridge (2008) now links the station to Piazzale Roma.

Cars
banned, except at Piazzale Roma and on the Lido
Public transport
vaporetti (water buses)
Railway causeway to the mainland
1846, nearly 3 km on 222 arches
Canal Grande and Rialto Bridge, Venice - part of UNESCO World Heritage Site Ref
Photo: Martin Falbisoner, CC BY-SA 4.0, via Wikimedia Commons

Weather, tides and floods

Sometimes the sea rises very high in Venice.

The water spills into the squares! People walk on raised wooden walkways. Now giant gates under the sea can rise up to keep high tides out.

Venice has warm summers and cool, misty winters. At the World Meteorological Organization's Venice station, July days averaged about 28 °C and January days about 7 °C between 1971 and 2000.

Venice also has a special problem: acqua alta, or "high water". When high tides come together with winds from the south and east, the lagoon rises and floods low squares. St. Mark's Square, the lowest ground in the city, starts to flood at a tide of about 80 centimeters. To protect the city, engineers built MOSE: 78 hollow steel gates lying on the seabed at the lagoon's three entrances. Since October 2020, they rise when a tide above 110 centimeters is forecast.

WMO normals for the Venice station (1971–2000) give average daily highs and lows of about 7 °C and 0 °C in January and 28 °C and 18 °C in July, with monthly rainfall summing to about 750 mm. Britannica notes summer haze and winter mists.

The lagoon's tides flush the canals twice a day, but deepened shipping channels, overpumping of mainland groundwater, a rising Adriatic and the sinking of the Po basin have lowered the land relative to the sea. When high tides combine with south and east winds, acqua alta floods the city; the 1966 flood prompted national and international efforts. The MOSE system's 78 hollow steel gates lie flat across the three inlets; when a tide above 110 cm is forecast, air is pumped in and they swing up. Construction began in 2003, and on the first real closure, October 3, 2020, the lagoon was held at 70 cm while the sea outside reached 130 cm. The system was declared fully operational at the end of 2023.

January, average daily high and low (WMO Venice station, 1971–2000)
about 7 °C and 0 °C
July, average daily high and low (same station and period)
about 28 °C and 18 °C
MOSE flood barrier
78 gates; first raised October 2020
Piazza San Marco starts to flood at
a tide of about 80 cm

Living in Venice

Each neighborhood in Venice has a little square, called a campo, with a church.

On the island of Murano, people make beautiful glass. Many people in Venice work welcoming visitors from all over the world.

In Venice, each neighborhood grew around a small square called a campo, with its well and its church, and many are still distinct communities. Houses are usually three or four stories tall, with red brick or ochre-painted walls.

Since 1291, much of Venice's glassmaking has happened on the nearby island of Murano. Today most people in the city work in tourism, because millions of visitors come every year. That brings money, but also crowds and high prices, and a shrinking share of the city's people live in the old island city.

The historic city keeps its old parish structure: Britannica describes neighborhoods centered on a campo, the site of the community well, and its church, still distinct communities in many ways. The Ghetto, in the northwest, where Venice's Jews were confined from 1516 to 1797, gave the world the word ghetto. Ordinary houses rise three or four stories; palaces front the larger canals.

Tourism has been at the heart of the economy since the end of the 18th century, and most of the city's workers are employed in it and related industries. Britannica notes that millions of visitors a year strain the infrastructure and push up prices, and that a shrinking share of the comune's people live in the historic center. Glassmaking furnaces moved to Murano in 1291 as a fire precaution, and Murano remains the center of Venetian glass. Venice and its Lagoon has been a UNESCO World Heritage Site since 1987.

Main work
tourism and related industries
Glassmaking island
Murano, since 1291
UNESCO World Heritage Site
Venice and its Lagoon, 1987
La Fenice Venice
Photo: Didier Descouens, CC BY-SA 4.0, via Wikimedia Commons

Venice on the map

Find Venice on the globe.

It is in Italy, in Europe. Look at the top of the long sea on Italy's east side. Venice sits in a shallow lagoon there.

Venice is in northeastern Italy, at the top of the Adriatic Sea. It sits in the Venetian Lagoon, a shallow bay about 51 kilometers long that is cut off from the sea by a line of long, thin sandbanks.

Three gaps in the sandbanks let the tides and ships in and out. The most famous sandbank is the Lido, a seaside resort. A long causeway carries the railway from the mainland to the city.

Venice lies at about 45.4° N and 12.3° E, at the northwestern end of the Adriatic. The crescent-shaped lagoon, about 51 km long, runs from the reclaimed marshes of Jesolo to the drained lands beyond Chioggia. It formed through the interaction of Adriatic tidal currents with Alpine rivers such as the Piave, Sile, Bacchiglione and Brenta.

A line of sandbanks (lidi) protects the lagoon; its three gaps (porti), at Lido, Malamocco and Chioggia, admit tides of about 1 m and the city's shipping. The Lido has been a seaside resort since the 19th century. On the mainland, Mestre and Marghera form the comune's largest districts.

Latitude
about 45.4° north
Longitude
about 12.3° east
Length of the lagoon
about 51 km
Inlets to the sea
3

Amazing facts

  • One old neighborhood in Venice has houses seven stories tall.

    The word ghetto was first used for a small island neighborhood in Venice, where Jewish people were made to live from 1516 to 1797.

    The word ghetto was first used in Venice, for the islet where the city's Jews were confined from 1516 to 1797; its houses rise to seven stories.

  • Venice's tall bell tower fell down and was built again.

    The 99-meter Campanile, the bell tower in St. Mark's Square, collapsed in 1902. It was rebuilt and finished by 1912.

    The Campanile of San Marco collapsed in 1902; the city council rebuilt it at once around a core of reinforced concrete, finishing by 1912.

  • In Venice, even ambulances are boats.

    Venice's canals carry ambulance boats, police boats, garbage barges and boats full of fruit and vegetables.

    Besides vaporetti and water taxis, Venice's canals carry fruit and vegetable barges, garbage barges, ambulance and police launches and baggage boats.

  • Glassmakers moved to the island of Murano long ago.

    In 1291 many glassmaking furnaces were moved to the island of Murano, to keep fires away from the city.

    In 1291 many glass furnaces were relocated to Murano as a precaution against fire; Murano remains the center of Venetian glassmaking.

  • Venice's flood gates lie flat on the seabed until they are needed.

    The 78 MOSE gates lie flat on the seabed. When a high tide is coming, air is pumped in, and they swing up to close the lagoon.

    On MOSE's first real closure, October 3, 2020, the lagoon was held at 70 cm while the sea outside reached 130 cm.

Words to know

lagoon
a shallow body of water separated from the sea by sandbanks or reefs
canal
a waterway made by people for boats
gondola
a long, flat-bottomed Venetian boat rowed by one person standing at the back
vaporetto
a Venetian water bus (plural: vaporetti)
acqua alta
Italian for "high water": a tide high enough to flood parts of Venice
subsidence
the slow sinking of land
republic
a state ruled by leaders who are chosen, not by a king or queen

Discovery challenge

  1. How do people get around in Venice's old city?

    Cars are banned in old Venice. How do people get around?

    With automobiles banned from the historic city, how do Venetians travel?

    • By boat and on foot
    • By subway
    • By car
    Show the answer

    By boat and on foot

    By boat and on foot! The streets are canals.

    People walk over about 400 bridges or ride water buses, water taxis and gondolas.

    On foot over some 400 bridges, or by vaporetto, water taxi and other boats; cars stop at Piazzale Roma and the Lido.

  2. How many little islands make up old Venice?

    About how many small islands does UNESCO say the historic city of Venice is spread over?

    According to UNESCO, over how many small islands is the historic city of Venice spread?

    • 8
    • 118
    • 1,118
    Show the answer

    118

    118! That is a lot of islands.

    118 small islands, joined by canals and bridges.

    UNESCO gives 118 small islands; Britannica counts more than 200 original canals joining them.

  3. What is acqua alta?

    What is acqua alta in Venice?

    What does the Venetian term acqua alta describe?

    • A high tide that floods the city
    • A famous ice cream
    • A kind of boat
    Show the answer

    A high tide that floods the city

    High water! The sea spills into the squares.

    Acqua alta means "high water": high tides and winds push the lagoon into the city.

    Flooding when high tides combine with south and east winds, made worse by subsidence and a rising Adriatic.

  4. How many MOSE gates protect Venice?

    How many gates does the MOSE flood barrier have?

    How many hollow steel gates make up the MOSE barriers across the lagoon's three inlets?

    • 3
    • 78
    • 500
    Show the answer

    78

    78 gates! They rise up from the seabed.

    78 gates, lying on the seabed at the three entrances to the lagoon.

    78 gates in four barriers across the Lido, Malamocco and Chioggia inlets, raised for tides forecast above 110 cm.

  5. Which month is warmer in Venice?

    In which month is Venice warmer, on average?

    In which month do days at the WMO Venice station average about 28 °C?

    • January
    • July
    Show the answer

    July

    July! Summer is warm.

    July days average about 28 °C, and January days about 7 °C.

    WMO normals (1971–2000) give about 28 °C for July days and about 7 °C for January days.

Nearby places

Explore next

For parents & teachers

What children will learn

  • Locate Venice in its lagoon at the top of the Adriatic Sea.
  • Explain how people built a city on islands and how they move around without cars.
  • Describe what causes acqua alta and how the MOSE gates work.
  • Connect Venice's history as a sea-trading republic with its buildings.

Recommended ages: 3 to 17 · About 15 minutes

Talk about it

  • What would your day be like if every trip was by boat or on foot?
  • Venice is sinking slowly while the sea rises. What are some ways a city can protect itself from the sea?
  • Millions of visitors come to Venice. What is good about that, and what problems can it cause for the people who live there?

Try at home or in class

  • Float a toy boat in a tray of water, then build a gate from a strip of card hinged with tape at the bottom of the tray's opening. Pour in water from outside to show how lifting the gate keeps the tide out.
  • Draw a map of an island city with canals instead of streets, and add bridges so you can walk from one end to the other.

Key vocabulary: lagoon, canal, gondola, vaporetto, acqua alta, subsidence, republic

Where these facts come from

  1. Wikidata , Wikimedia Foundation (CC0 1.0)
  2. Natural Earth vector data , Natural Earth (NACIS) (Public domain)
  3. UNESCO World Heritage List , UNESCO World Heritage Centre (Linked as a reference; site facts come from Wikidata)
  4. Venice , Encyclopaedia Britannica
  5. Venice: Lagoon and tides , Encyclopaedia Britannica
  6. Venice: Canal boats and bridges , Encyclopaedia Britannica
  7. Venice: The Piazza San Marco , Encyclopaedia Britannica
  8. Venice: Economy , Encyclopaedia Britannica
  9. Venice: History , Encyclopaedia Britannica
  10. Venice: The commune , Encyclopaedia Britannica
  11. Venice: Zenith of power , Encyclopaedia Britannica
  12. Venice: In unified Italy , Encyclopaedia Britannica
  13. San Marco Basilica , Encyclopaedia Britannica
  14. Venice and its Lagoon (World Heritage List, 394) , UNESCO World Heritage Centre
  15. MOSE Venice: how the flood barrier works , Visit Venice
  16. Venice: climatological information , World Meteorological Organization, World Weather Information Service
  17. Wikimedia Commons , Wikimedia Foundation (Per file (public domain, CC0, CC BY or CC BY-SA); see each media record)

Checked, not yet human-reviewed. Last updated October 27, 2026. Spotted a mistake? Tell us.

Picture credits
  • Photo: European Space Agency, CC BY-SA 3.0 igo, via Wikimedia Commons · source · license
  • Photo: Nino Barbieri, CC BY-SA 2.5, via Wikimedia Commons · source · license
  • Photo: Martin Falbisoner, CC BY-SA 4.0, via Wikimedia Commons · source · license
  • Photo: Didier Descouens, CC BY-SA 4.0, via Wikimedia Commons · source · license