This is a very interesting article, but many of the numbers are off.
The three foundation stones at Baalbek are estimated at 800 to 1100 tons each. The Romans never managed to move anything much over 300 tons -- one of the Egyptian obelisks had to be broken up so they could bring the top part to Rome.
Nobody knows who moved the stones at Baalbek, but they are much more deeply weathered than the Roman temples built on top. It is considered important that they did not need to be lifted, as they were quarried from higher than their final resting place.
The three foundation stones at Baalbek are estimated at 800 to 1100 tons each. The Romans never managed to move anything much over 300 tons -- one of the Egyptian obelisks had to be broken up so they could bring the top part to Rome.
Nobody knows who moved the stones at Baalbek, but they are much more deeply weathered than the Roman temples built on top. It is considered important that they did not need to be lifted, as they were quarried from higher than their final resting place.