The Western Stone
, located in the northern section of Wilson's Arch
, is a stone block forming part of the lower level of the Western Wall
. The stone is 13.6 meters (44.6 feet) long, 3 metres (9.8 feet) high and has an estimated width of 3.3 meters (10.8 feet). It weighs 517 tonnes
(570 short tons
The Western Stone is heavier than any single stone built into the Egyptian pyramids. Although it was originally thought to be the heaviest single object ever lifted by human beings without powered machinery, that record seems to be held by the Thunder Stone in Saint Petersburg.