The moonlit chapel of Saint-Aubert at Le Mont St Michel in Normandy, France
According to legend, the chapel is built on the spot where a heavy stone, which was miraculously pushed away from the Mount by a child, fell. No worker was able to move the stone because it was so heavy and the stone became the foundation where the first church had to be built.
v2 - apologies if you commented on a previous version... There were a couple of things I wanted to fix :)