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Baalbek
Baalbek is a place in Lebanon with giant stone ruins. Romans built huge temples there long ago. Some of its stones are enormous!
Baalbek, in the Bekaa Valley of Lebanon, has some of the largest and best-preserved Roman temples ever built. For more than two centuries, builders raised enormous temples on a platform made of giant stone blocks. In a quarry nearby lies a carved block of about 1,650 tons that was never moved.
Known as Heliopolis in Hellenistic and Roman times, Baalbek stands at 1,150 m where the Bekaa plain meets the Anti-Lebanon range. Its Roman sanctuary, built over more than two centuries on a terrace of monoliths up to 800 tons and more, holds some of the largest and best-preserved Roman temples; UNESCO inscribed it in 1984.
Photo: Saadedine AL SAIDI, CC BY-SA 4.0, via Wikimedia Commons
Discover Baalbek
Baalbek is in Lebanon, a small country in Asia.
It has giant ruins made of stone. There are tall columns, big stone platforms and huge carved blocks. A modern town is right next to them.
Baalbek is a town in the Bekaa Valley in Lebanon, a country on the eastern shore of the Mediterranean Sea. It stands 1,150 meters above sea level, where a wide, fertile plain meets the Anti-Lebanon mountains.
Next to the town is a group of ancient ruins called an acropolis, a high, walled area of temples. Builders worked on it for more than 200 years while Rome ruled the region. UNESCO says Baalbek has some of the largest Roman temples ever built, and that they are among the best preserved. People also call the ruins by their ancient name, Heliopolis.
The temple complex lies at the foot of the southwest slope of the Anti-Lebanon range, bordering the fertile Bekaa plain at an altitude of 1,150 m. UNESCO describes a Phoenician city known as Heliopolis in the Hellenistic period, which reached its peak under Rome, when colossal buildings rose over more than two centuries.
UNESCO inscribed Baalbek in 1984 under criteria (i) and (iv), calling it an outstanding example of a Roman sanctuary that displays the power and wealth of the empire, with some of the largest Roman temples ever built, among the best preserved. The listed property takes in the temples on the acropolis, the stairway on Sheikh Abdallah Hill and the Odeon at Boustan el Khan, with the old town inside its Arab walls as their setting.
- Where
- Bekaa Valley, Lebanon, at 1,150 m
- Built
- over more than two centuries of Roman rule
- Great temple's columns
- about 20 m high
- World Heritage Site
- 1984
A city with many lives
People lived at Baalbek long, long ago.
Later, the Romans came and built giant temples. Over hundreds of years, other rulers came. They turned the temples into a strong fort. Earthquakes damaged them too.
Baalbek was a Phoenician city long before the Romans came. In the time after Alexander the Great, it was called Heliopolis. Under Roman rule it became a colony, a town settled by Roman citizens, and its builders spent more than 200 years raising giant temples. People traveled from far away to visit them.
Later, many of the buildings were used as churches. After Arab armies arrived in 637 CE, the temples were made into a fortress, and a mosque was built among them. Over the centuries, earthquakes damaged the ruins even more. In 1898 a team from Germany began digging and repairing the ruins.
UNESCO traces the site from a Phoenician city, known as Heliopolis in the Hellenistic period, to a celebrated Roman sanctuary, progressively overlaid with colossal buildings over more than two centuries, which drew thousands of pilgrims. World History Encyclopedia dates its status as a Roman colony to 15 BCE.
The same encyclopedia records that in the Christian era the temples served as churches, and that after the Arab conquest of 637 CE the acropolis was fortified, gaining the name al-Qalaa, the fortress, with a mosque among the ruins. Raids and a series of earthquakes left the site in ruins until a German team began excavating after Kaiser Wilhelm II's visit in 1898. UNESCO notes restoration campaigns in the 1960s and 1980s and later consolidation by Lebanon's Directorate General of Antiquities.
Giant stones
The Romans built on a giant stone platform.
Some of its stones are enormous. Nearby is a quarry, where the stones were cut. One huge stone is still lying there. It was too big to move!
The Roman temples stand on a raised platform built from enormous stone blocks. UNESCO says 24 of them are single huge stones, called monoliths, and the biggest weighs more than 800 tons.
The stone came from a limestone quarry close by. Some giant blocks were cut there but never moved. One, nicknamed the Stone of the Pregnant Woman, weighs about 1,000 tons. In 2014, archaeologists led by the German Archaeological Institute found an even bigger block beside and below it: about 19.5 meters (64 feet) long, weighing an estimated 1,650 tons. The German Archaeological Institute calls it the biggest stone block known from ancient times.
The Roman sanctuary was built on top of earlier remains formed into a raised plaza, which UNESCO says includes 24 monoliths, the largest weighing over 800 tons. Archaeology magazine adds that the Temple of Jupiter sits on three limestone blocks of a size similar to the quarry's giants.
In 2014 a team led by the German Archaeological Institute excavated around the Hajjar al-Hibla, the Stone of the Pregnant Woman, in the ancient quarry. Beside and below it they found a block measuring about 64 by 19.6 by 18 feet (about 19.5 by 6 by 5.5 m), estimated at 1,650 tons, which the institute calls the biggest block known from antiquity. Estimates for Hajjar al-Hibla differ: about 1,000 tons in Archaeology, up to 1,240 tons in Smithsonian. The blocks probably date to about 27 BCE and were likely meant for the Temple of Jupiter, but were never moved; a crack had already formed in one corner of Hajjar al-Hibla.
The temples
Baalbek has several temples.
The biggest had very tall columns. It stood on the giant stone platform. Another temple still has rows of tall columns. Its stones are covered with carvings.
The acropolis held several temples. The largest, the Temple of Jupiter, was surrounded by columns about 20 meters high, and it stood on the giant stone platform.
Next to it is a smaller temple, known as the Temple of Bacchus. Its rows of tall columns still hold up carved stone beams, as you can see in the photo. Its huge doorway is covered in carvings. There is also a little round temple, with a layout unlike any other building there.
UNESCO's description of the acropolis lists several temples. The Temple of Jupiter, the principal temple, was remarkable for the 20 m columns that surrounded its cella, the inner chamber, and for the gigantic stones of its terrace. The adjacent Temple of Bacchus is richly decorated and of impressive size, with a monumental carved gateway.
The Round Temple, also called the Temple of Venus, is admired for its original layout and refined proportions in a city of colossal structures. Of the Temple of Mercury on Sheikh Abdallah Hill only a stairway cut into the rock survives, and an Odeon, a small theater, lies south of the acropolis at Boustan el Khan. UNESCO calls the whole a blend of Roman architecture with local traditions of planning and layout.
- Temple of Jupiter columns
- about 20 m high
- Largest stone in the platform
- over 800 tons
- Block left in the quarry
- about 1,650 tons
Protecting Baalbek
Today, people come from all over to see Baalbek.
Experts work to keep the old stones safe. They mend cracks and hold up walls that might fall.
Baalbek became a UNESCO World Heritage Site in 1984. That means the world agrees it is worth protecting for everyone.
The ruins have been repaired many times, especially in the 1960s and the 1980s. Lebanon's Directorate General of Antiquities, the government office that cares for ancient sites, keeps strengthening the stones inside the old fortress. UNESCO warns that the site is fragile: new buildings and changes nearby could spoil its grand setting.
UNESCO judges that the overall authenticity of the site has survived extensive restoration in the 1960s and 1980s and the unplanned development that followed armed conflict, thanks to national and international efforts. The Directorate General of Antiquities has consolidated and restored the monuments, especially inside the Qal'a, the citadel holding the Temples of Jupiter and Bacchus, and at Boustan el Khan.
UNESCO still calls the property highly vulnerable to changes in the detail of its structures and the majesty of its setting, and its documents include a 2011 proposal for an integrated risk-preparedness strategy. The surrounding town, within its Arab walls, together with the area extending to the Mamluk mosque of Ras al-Ain, forms the context that UNESCO says must be protected along with the temples.
Amazing facts
-
The biggest stone block from ancient times is near Baalbek.
A block found in 2014 in a quarry near Baalbek weighs about 1,650 tons. Experts call it the biggest stone block known from ancient times.
The German Archaeological Institute calls the 1,650-ton block uncovered in 2014 the biggest boulder known from antiquity.
-
One giant stone has a funny nickname: the Stone of the Pregnant Woman.
A giant block in the quarry is nicknamed Hajjar al-Hibla, the Stone of the Pregnant Woman. It weighs about 1,000 tons.
Hajjar al-Hibla, the 'stone of the pregnant woman', is estimated at about 1,000 tons (Archaeology) or up to 1,240 tons (Smithsonian).
-
Baalbek's biggest temple had columns about 20 meters tall.
The columns around the Temple of Jupiter were about 20 meters high.
The Temple of Jupiter's peristyle columns stood about 20 m high around its cella.
Words to know
- acropolis
- a high, walled area of an ancient city with important buildings
- monolith
- a single, very large block of stone
- quarry
- a place where stone is cut out of the ground
- column
- a tall, round stone post that holds up part of a building
- capital
- the carved top of a column
- podium
- the high stone base a temple stands on
- colony
- a town settled by people from another country that rules it
Discovery challenge
-
Which country is Baalbek in?
In which country is Baalbek?
Baalbek stands on the edge of the Bekaa plain in which country?
- Lebanon
- Italy
- Egypt
Show the answer
Lebanon
Lebanon! It is a small country by the sea.
Lebanon, in the Bekaa Valley, 1,150 meters above sea level.
Lebanon, at the foot of the Anti-Lebanon range.
-
Who built the giant temples at Baalbek?
During whose rule were Baalbek's giant temples built?
Under which empire were Baalbek's colossal temples raised over two centuries?
- The Romans
- The Vikings
- The Aztecs
Show the answer
The Romans
The Romans! They built them long ago.
The Romans, over more than 200 years.
Rome; UNESCO calls the sanctuary a model of Imperial Roman architecture at its height.
-
Why is a giant stone still lying in the quarry?
Why did some giant blocks never leave the quarry?
What is the likely reason the quarry megaliths were never moved?
- They were too big to move
- People forgot them
- They were made of gold
Show the answer
They were too big to move
They were too big to move!
Experts think they were far too massive to transport, and one had already cracked.
They were probably unsuitable for transport; a crack had already formed in one corner of Hajjar al-Hibla.
-
About how heavy is the block found in 2014?
About how much does the block found in the quarry in 2014 weigh?
What is the estimated weight of the block uncovered in 2014?
- About 16 tons
- About 165 tons
- About 1,650 tons
Show the answer
About 1,650 tons
About 1,650 tons! That is super heavy.
About 1,650 tons, the biggest stone block known from ancient times.
About 1,650 tons, for a block about 64 by 19.6 by 18 feet (about 19.5 by 6 by 5.5 m).
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For parents & teachers
What children will learn
- Locate Baalbek in Lebanon's Bekaa Valley.
- Describe the Roman temples and the giant stones of their platform.
- Explain what the unmoved quarry blocks tell archaeologists.
- Discuss how a site can change use over many centuries.
Recommended ages: 3 to 17 · About 15 minutes
Talk about it
- How do you think people moved stones weighing hundreds of tons without engines?
- Baalbek's temples became churches and then a fortress. Why might people reuse old buildings instead of building new ones?
- Why might new buildings near an ancient site be a problem?
Try at home or in class
- Try moving a heavy book across a table by sliding it, then by rolling it on pencils. Which is easier, and why?
- Stack sugar cubes into a platform and stand straws on it as columns to build a model temple.
Key vocabulary: acropolis, monolith, quarry, column, capital, podium, colony
Where these facts come from
- Wikidata , Wikimedia Foundation (CC0 1.0)
- UNESCO World Heritage List , UNESCO World Heritage Centre (Linked as a reference; site facts come from Wikidata)
- Baalbek , UNESCO World Heritage Centre
- The Largest Manmade Block Ever Was Just Discovered in Lebanon (2014) , Smithsonian Magazine
- Lebanon: Baalbek quarry megalith (March/April 2015) , Archaeology (Archaeological Institute of America)
- Baalbek , World History Encyclopedia
- 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.