One of the tallest waterfalls in Africa is also home to a population of monkeys who enjoy the waters and the occasional guest.

Fortune tellers, snake charmers, poets, and storytellers all gather on this historic square in Morocco.

A Turkish ghost town abandoned in a population exchange with Greece.

These tombs were built into the side of a mountain so that ancient angels could reach the dead.

Roman ruins top white travertine terraces formed by ancient hot springs.

A marvel of Byzantine engineering under the streets of Istanbul.

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

The grave of Mrs. Reginald Hargreaves, who inspired the tale 'Alice in Wonderland.'

The world's oldest operational public pier railway has shuttled seagoing commuters from ship to shore since 1909.

The bunker where Hitler took his own life is hidden under this deliberately ordinary parking lot.

A fascinating insight into daily life in the Eastern Bloc.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

A slice of central Asia in the middle of Berlin.

This popular tourist cave was ignored for almost 200 years before being mined into an attraction.

The Grand Mall in Varna hosts one of the biggest collections of Soviet-era paraphernalia in Bulgaria.

This once-grandiose behemoth of a monument from the socialist era now sits quiet and closed up.