List of largest monoliths

This is a list of monoliths organized according to the size of the largest block of stone on the site.

In this list at least one colossal stone over ten tons has been moved to create the structure or monument.

This article also includes a list of modern experimental archaeology efforts to move colossal stones using technologies available to the respective ancient civilizations.

To help recognize exaggerations, an introductory description shows how to calculate the weight of colossal stones from first principles.

To obtain accurate estimates, one needs to survey the monolith, including realistic and explicit assessment of the shapes of inaccessible portions, and then calculate the volume and estimate volumetric errors, which vary crudely as the cube of linear uncertainties.

People on Nias in Indonesia move monoliths to a construction site, c. 1915
The 1,250 t heavy Thunder Stone in Saint Petersburg. On top is an equestrian statue of Peter the Great
The 53.3 t heavy capital block (the rectangular platform fitted with a railing) of Trajan's Column in Rome , Italy, was lifted by Roman cranes to a record height of about 34 m.
The Western Stone of the Western Wall in Jerusalem weighs 517 t.
Cyclopean walls of the ancient Illyrian city of Daorson , Stolac, in Bosnia and Herzegovina.
Brownshill Dolmen , Ireland (4th millennium BC). The great capstone weighs about 100 tons.