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Zagreb

Zagreb is the capital city of Croatia. It has blue trams and a tiny train that climbs a hill. Every day at noon, an old cannon goes BOOM!

Zagreb is the capital of Croatia, between the Sava River and Medvednica mountain. It grew from two old hilltop towns, Kaptol and Gradec, which joined in 1850. The 2021 census counted 767,131 people in the City of Zagreb, and its blue trams have run since 1891.

Zagreb, capital of Croatia, lies between Medvednica and the Sava, where the Pannonian plain meets the edges of the Alps and the Dinaric range. First recorded in 1094, when a diocese was founded on Kaptol, it merged with the royal free town of Gradec in 1850. The 2021 census counted 767,131 people in the City of Zagreb.

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Photo: Nick Savchenko from Kiev, Ukraine, CC BY-SA 2.0, via Wikimedia Commons

Discover Zagreb

Zagreb is the capital city of Croatia.

It sits by a river called the Sava. A mountain called Medvednica stands to the north. Blue trams run along the streets.

Zagreb is the capital of Croatia and home to the country's parliament, government and president. The Zagreb Tourist Board calls it Croatia's cultural, scientific, economic and political center.

The city spreads across a plain beside the Sava River, with the mountain of Medvednica rising to the north and shielding it from cold northern winds. Croatia's 2021 census counted 767,131 people in the City of Zagreb, a little fewer than the 790,017 counted in 2011.

Zagreb is the seat of Croatia's parliament, government and president. The Zagreb Tourist Board places it on the threshold between the Pannonian plain, the edge of the Alps and the Dinaric range, a position that made it a crossing point for travel and trade.

The Croatian Bureau of Statistics' census of 31 August 2021 counted 767,131 people in the City of Zagreb, down from 790,017 in 2011. Blue is the city's color: it appears on the coat of arms and on Zagreb's trams, buses and funicular.

Country
Croatia (capital)
People in the City of Zagreb (2021 census)
767,131
First written record
1094
River
the Sava
Photo of Zagreb
Photo: Nick Savchenko from Kiev, Ukraine, CC BY-SA 2.0, via Wikimedia Commons

The Upper Town, a cathedral and a busy square

Zagreb has an old white tower on a hill. Every day at noon, a cannon in the tower goes BOOM. It is not loaded, so it only makes a loud noise and a puff of smoke.

Nearby is a market where farmers sell fresh food every day.

In the Upper Town, the old town of Gradec, stands Lotrščak Tower, built in the 1200s to guard a gate in the town walls. Since 1 January 1877 a cannon has been fired from it every day at noon. It is never loaded: it just makes a boom and a puff of white smoke.

On the other hill, Kaptol, rises the neo-Gothic Zagreb Cathedral. Below the two hills is Ban Jelačić Square, the city's main square, and close to the cathedral is Dolac, Zagreb's best-known market, where producers sell fresh fruit, vegetables, meat and fish every day.

Lotrščak Tower, built in the 13th century, guarded an entrance to Gradec when it was still a separate walled town. Since 1 January 1877 the Grič cannon on its fourth floor has been fired at noon, originally as a signal for the church bells across Zagreb to ring midday; it has fallen silent only during the First World War and after the 2020 earthquake.

Zagreb Cathedral on Kaptol dominates the skyline in the neo-Gothic style; its two spires were part of Hermann Bollé's reconstruction. The earthquake of 22 March 2020 damaged the cathedral, and on 17 April 2020 part of the north spire, about 30 tonnes at a height of 120 m, was removed for safety. Between the hills lies Ban Jelačić Square, which grew from a trading area below the two settlements, and nearby Dolac, the best-known of the city's open-air food markets, where producers sell fresh food daily.

Lotrščak Tower
13th century; noon cannon since 1 January 1877
Zagreb Cathedral
neo-Gothic; damaged by the earthquake of 22 March 2020
Dolac market
fresh fruit, vegetables, meat and fish sold daily
Photo of Zagreb
Photo: Nick Savchenko from Kiev, Ukraine, CC BY-SA 2.0, via Wikimedia Commons

Two hilltop towns become one city

Long ago, Zagreb was two small towns on two hills.

A little stream ran between them. Later the two towns joined to make one big city.

People lived near Zagreb in the Stone Age, and the Romans built a town called Andautonia nearby. Zagreb's story as a city begins with two hills. In 1094 King Ladislaus founded a diocese on Kaptol, where the cathedral now stands. On the other hill grew the town of Gradec. In 1242 King Béla IV made Gradec a free royal town to thank its people for sheltering him.

The two towns, separated by the Medveščak stream, joined in 1850 to make one city of about 15,000 people. A railway arrived in 1862, and the city began to grow along straight, planned streets. Zagreb was later part of Yugoslavia, and in 1991 it became the capital of independent Croatia.

Finds from around 35,000 BCE show people in the area in the Stone Age, and the Romans built Andautonia, whose remains are preserved at Ščitarjevo. The first written record of Zagreb is from 1094, when the Hungarian king Ladislaus founded the diocese of Kaptol. In the mid-13th century King Béla IV, fleeing the Mongol invasion, found refuge in Zagreb, and in 1242 he granted Gradec a charter as a free royal town.

The ecclesiastical and royal towns, divided by the Medveščak creek and often at odds, merged in 1850 into a single city of about 15,000 people. After the railway reached the city in 1862, Zagreb began to develop on a grid of straight streets of equal width. In 1918 Croatia left Austria-Hungary for the Kingdom of Serbs, Croats and Slovenes; after the Second World War Zagreb was capital of one of Yugoslavia's six republics, and in 1991, when the Croatian Parliament proclaimed independence, it became the capital of the new state.

Diocese founded on Kaptol
1094
Gradec made a free royal town
1242
Kaptol and Gradec merge
1850 (about 15,000 people)
Photo of Zagreb
Photo: Nick Savchenko from Kiev, Ukraine, CC BY-SA 2.0, via Wikimedia Commons

Through the years

Blue trams and a very short funicular

Zagreb's trams are painted blue.

A funny little train called a funicular pulls people up a steep hill. The ride takes only about one minute!

Zagreb's first trams were pulled by horses, starting on 5 September 1891. Electric trams took over from 18 August 1910. The city's trams, buses and funicular are painted blue, Zagreb's color.

The funicular is a little railway car pulled up a steep slope. It opened on 8 October 1890 and climbs from the Lower Town to the Upper Town, beside Lotrščak Tower, in about a minute. Its track is only 66 meters long, making it one of the shortest in the world. After a 16-month renovation, it reopened in May 2026.

ZET, the city's transport company, dates organized public transport to 5 September 1891, when a horse-drawn tram service began. The first electric tramcar ran on 18 August 1910, and within a year electric trams had replaced the horse cars; buses followed in 1931.

The funicular (uspinjača), opened on 8 October 1890, is Zagreb's oldest means of public transport. Its 66 m track rises at a gradient of up to 52 percent from Tomićeva Street to the Upper Town beside Lotrščak Tower in about a minute. It ran on steam until it was electrified in 1934. Croatian public broadcaster HRT calls it the shortest funicular of its kind in the world; it reopened on 19 May 2026 after a 16-month, roughly 9-million-euro renovation.

First horse-drawn tram
5 September 1891
First electric tram
18 August 1910
Funicular (uspinjača)
66 m long, opened 8 October 1890
Photo of Zagreb
Photo: Nick Savchenko from Kiev, Ukraine, CC BY-SA 2.0, via Wikimedia Commons

Cold winters, warm and rainy summers

Winter in Zagreb is cold.

Summer is warm. June is the rainiest month.

Zagreb has cold winters and warm summers. The World Meteorological Organization's averages for the Zagreb station give January days of about 3 °C and nights of about −4 °C. July is the warmest month, with days averaging about 27 °C.

Some rain falls in every month, about 860 millimeters in an average year. June is the wettest month, with about 99 millimeters, and February the driest.

WMO normals for Zagreb (Croatian Meteorological and Hydrological Service; the averaging period is not stated) give average highs and lows of 3.1 °C and −4.0 °C in January and 26.7 °C and 14.2 °C in July, the warmest month, with August close behind at 26.2 °C.

The monthly rainfall averages add up to about 856 mm, from 41.9 mm in February to 99.3 mm in June; August (90.5 mm) is next, and rain rises again in November (84.8 mm). Each month has about 10 to 14 days with precipitation. The Zagreb Tourist Board notes that Medvednica, to the north, shelters the city from cold northern winds.

January, average daily high and low (WMO Zagreb station)
about 3 °C and −4 °C
July, average daily high and low (same station)
about 27 °C and 14 °C
Rain and snow in a year (sum of the monthly averages)
about 860 mm

Parks, museums and a famous pen

Zagreb has many parks and green squares.

It has a big park with a zoo. A mountain close to the city is a good place for outings.

The Lower Town has a U-shaped chain of eight green squares called the Green Horseshoe, with parks, fountains and important buildings such as the main railway station and the National Theatre. In the east of the city is Maksimir, Zagreb's biggest park, where a zoo opened in the first half of the 1900s.

An engineer named Eduard Slavoljub Penkala made his inventions in Zagreb: he patented a mechanical pencil in 1906 and a fountain pen in 1907. Just north of the city, Sljeme, the highest peak of Medvednica at 1,035 meters, is a favorite place for outings.

The Green Horseshoe, a U-shaped line of eight green squares created by Lenuci in the 19th century, forms the axis of the Lower Town and holds the main railway station, the Academy of Sciences and Arts, the University Library and the National Theatre. Maksimir, the city's largest park, was landscaped in the English style in the 19th century and later gained a zoo; the Botanical Garden holds some 10,000 plant varieties.

Engineer Eduard Slavoljub Penkala patented a mechanical pencil in 1906 and a fountain pen in 1907, producing them in Zagreb for export. Jarun, once a branch of the Sava, became a lake and recreation center for the 1987 University Games. Sljeme (1,035 m), the summit of Medvednica, lies about half an hour from the main square.

Green Horseshoe
eight green squares in the Lower Town
Sljeme, highest peak of Medvednica
1,035 m
Eduard Slavoljub Penkala's patents
mechanical pencil 1906, fountain pen 1907
Photo of Zagreb
Photo: Nick Savchenko from Kiev, Ukraine, CC BY-SA 2.0, via Wikimedia Commons

Zagreb on the map

Find Zagreb on the globe.

It is in Croatia, in Europe. Look for a city with a mountain on one side and a river on the other.

Zagreb is in Croatia. Its old center sits on two hills, with the mountain of Medvednica to the north. The city spreads across a wide plain along the Sava River.

After the Second World War, Zagreb grew across the Sava, and new neighborhoods on the south bank are called Novi Zagreb, which means New Zagreb.

Zagreb lies at about 45.8° N and 16.0° E. Its historic core occupies the hills of Gradec and Kaptol, with Medvednica to the north, and the city opens onto the plain of the Sava, where the Pannonian lowlands meet the edges of the Alps and the Dinaric range.

For centuries the Sava flooded its valley; from the mid-20th century the city expanded onto the river's south bank, and the river became the line between old Zagreb and Novi Zagreb.

Latitude
about 45.8° north
Longitude
about 16.0° east
Setting
between Medvednica (north) and the Sava (south)

Amazing facts

  • A cannon in Zagreb goes BOOM every day at noon, but it is never loaded.

    Since 1 January 1877, a cannon in Lotrščak Tower has been fired at noon. It is never loaded, so it only makes a boom and a puff of smoke.

    The Grič cannon in Lotrščak Tower has marked noon since 1 January 1877, first as a signal for the city's bell ringers; it has fallen silent only during the First World War and after the 2020 earthquake.

  • Zagreb's hill train has a very short track.

    Zagreb's funicular track is only 66 meters long, and the ride takes about a minute.

    The funicular's 66 m track, opened in 1890, climbs at a gradient of up to 52 percent; it was steam-driven until 1934.

  • Long ago, horses pulled Zagreb's trams.

    Zagreb's first trams, in 1891, were pulled by horses. Electric trams replaced them within a year of starting in 1910.

    ZET counts 5 September 1891, the start of horse-drawn tram service, as the birthday of organized public transport in Zagreb; electric trams followed on 18 August 1910.

  • An inventor made pens and pencils in Zagreb long ago.

    Engineer Eduard Slavoljub Penkala patented a mechanical pencil in 1906 and a fountain pen in 1907, and made them in Zagreb.

    Eduard Slavoljub Penkala patented a mechanical pencil (1906) and a fountain pen (1907), manufactured them in Zagreb and had about 80 inventions to his name.

Words to know

capital
the city where a country's government meets
funicular
a small railway that pulls cars up and down a steep slope with a cable
tram
a passenger vehicle that runs on rails laid in city streets
diocese
an area looked after by a bishop of the church
charter
an official document that gives a town or group special rights
census
an official count of all the people in a country

Discovery challenge

  1. Zagreb is the capital of which country?

    Zagreb is the capital city of which country?

    Zagreb became the capital of which independent country in 1991?

    • Croatia
    • Austria
    • Greece
    Show the answer

    Croatia

    Croatia! Zagreb is its capital.

    Zagreb is the capital of Croatia, home to its parliament and government.

    Croatia, whose parliament proclaimed independence in 1991.

  2. What booms in Zagreb every day at noon?

    What is fired from Lotrščak Tower every day at noon?

    What has been fired from Lotrščak Tower at noon since 1 January 1877?

    • A firework
    • A cannon
    • A ship's horn
    Show the answer

    A cannon

    A cannon! It only makes noise and smoke.

    The Grič cannon. It is never loaded, so it just booms.

    The Grič cannon, first fired as a noon signal for the city's bell ringers.

  3. What color are Zagreb's trams?

    What color are Zagreb's trams, buses and funicular?

    Which color, Zagreb's own, is used on its coat of arms, trams, buses and funicular?

    • Blue
    • Yellow
    • Green
    Show the answer

    Blue

    Blue! Blue is Zagreb's color.

    Blue, the color of Zagreb.

    Blue, which the Zagreb Tourist Board calls the color of Zagreb.

  4. Long ago, Zagreb was two towns. Where were they?

    Zagreb grew from two old towns. Where were they built?

    Kaptol and Gradec, which merged in 1850, were built where?

    • On two islands
    • On two hills
    • Inside a cave
    Show the answer

    On two hills

    On two hills! Later they joined.

    On two hills, Kaptol and Gradec, which joined in 1850.

    On two neighboring hills divided by the Medveščak creek; they merged in 1850.

  5. Which river flows past Zagreb?

    Which river flows past Zagreb?

    Across which river did Zagreb expand to build Novi Zagreb?

    • The Sava
    • The Seine
    • The Amazon
    Show the answer

    The Sava

    The Sava! It is south of the old town.

    The Sava River, south of the old center.

    The Sava; from the mid-20th century the city spread onto its south bank as Novi Zagreb.

Nearby places

Explore next

For parents & teachers

What children will learn

  • Locate Zagreb in Croatia, between Medvednica and the Sava River.
  • Explain how two neighboring towns, Kaptol and Gradec, merged into one city.
  • Describe how a city's transport changed from horse-drawn trams to electric trams.
  • Read monthly temperature and rainfall averages to describe a city's climate.

Recommended ages: 3 to 17 · About 15 minutes

Talk about it

  • Zagreb's noon cannon once told bell ringers when it was midday. How do people know the time today, and what did they use before clocks were everywhere?
  • Kaptol and Gradec were rivals for centuries before they joined. Why might two neighboring towns decide to become one city?
  • Zagreb paints its trams, buses and funicular blue. Does your town have a color or symbol? Where do you see it?

Try at home or in class

  • Build a funicular on a ramp: tape a ruler to a stack of books, tie a toy car to a string over the top, and pull it up the slope. Compare a steep ramp with a gentle one.
  • Make a two-hill model of old Zagreb with clay: put a tower on one hill and a church with two spires on the other, and draw a stream between them.
  • Keep a noon log for a week: at 12 o'clock each day, note the weather and temperature, and compare with Zagreb's averages for that month.

Key vocabulary: capital, funicular, tram, diocese, charter, census

Where these facts come from

  1. Wikidata , Wikimedia Foundation (CC0 1.0)
  2. Natural Earth vector data , Natural Earth (NACIS) (Public domain)
  3. City of Zagreb: city districts, population statistics (censuses 2001, 2011, 2021) , City Population (Thomas Brinkhoff), from the Croatian Bureau of Statistics
  4. Basic facts about Zagreb , Zagreb Tourist Board (infozagreb.hr)
  5. Zagreb's boom at noon: the Grič Cannon , Time Out Croatia
  6. Croatian Armed Forces remove the north spire of Zagreb Cathedral , Hrvatski vojnik (Croatian Ministry of Defence magazine)
  7. Zagreb's ZET marks 130 years of public transport in city , N1 Croatia
  8. Zagreb's oldest means of public transport still going strong , Croatia Week
  9. Zagreb funicular reopens after major 16-month renovation , HRT (Croatian Radiotelevision), Glas Hrvatske
  10. Zagreb: climatological information , World Meteorological Organization, World Weather Information Service
  11. 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 November 1, 2026. Spotted a mistake? Tell us.

Picture credits
  • Photo: Nick Savchenko from Kiev, Ukraine, CC BY-SA 2.0, via Wikimedia Commons · source · license