Fort du Janus

A fresco in this magnificent palace is said to have been the first depiction of the Taj Mahal's design.

Henry VIII's forgotten castle was built by the gunpowder-obsessed king to be defended solely by cannons.

This 15th-century fortification was built to defend bunnies.

Two columns and a path leading into the woods at Fort Bennett Park are all that remain of a custom-built, Bavarian-inspired castle

Rest stops along this pathway offer some of the best views of the Acropolis of Athens.

The ruins of one of the most important Roman villas north of the Alps.

This fifth-century church is one of the oldest Christian sites in the Balkans.

The crumbling ruins of an old stone mansion sit atop a hill in the middle of Pune.