There's a mini version of Iguazu Falls hidden in the Balkans, and it's got a rope swing.

Bridge that died in war and was resurected.

When Croatia became independent of Yugoslavia, the splintering governments left behind these concrete tunnels.

Formerly Yugoslavia's "forbidden island," this sleepy little city still holds the abandoned remains of military strongholds.

A chain of 16 wondrous lakes formed as a result of the gradual dissolution of soluble layers of bedrock.

A Bronze age settlement on the Greek island of Santorini might have been the inspiration for Plato's Atlantis.

This 15th-century island fortress later served as home to the executioners no one wanted to live near.

Giant marble phalluses on the sacred island of antiquity.

Monasteries on rock pillars, once accessible only by frayed ropes.

France's most famous cemetery, with some of its most curious tombs.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

This inexpensive lodging house was once a prison notorious for its inhumane practices.

This lovely, if imposing, piece of Canadian gothic is possibly the most photographed hotel in the world.