Six colossal Roman-era worked stone blocks at Baalbek (ancient Heliopolis) in Lebanon. The Trilithon consists of three stones in the Temple of Jupiter podium, each approximately 19 m long, 4.2 m high, and weighing 750-800 tonnes. The Stone of the Pregnant Woman, an unfinished monolith still in the quarry 900 m from the temple, measures 21 m long and weighs roughly 1,000 tonnes. These represent the largest monoliths ever quarried in the ancient world.
Baalbek Stones

Also known as: Baalbek Quarry
| Type | Megalithic stones |
|---|---|
| Period | < 4500 BC |
| Country | Lebanon |
| Coordinates | 33.9992° N, 36.2003° E |
Lebanon