According to the Guanches, the aboriginal people of the Canary Islands, the king of evil lives inside this volcano.

This church houses the tomb—but not the remains—of St. Nicholas, the likely progenitor to Santa Claus.

Once described as the "Eagle's Nest," this ruined ancient city rests on a remote mountaintop.

The best-preserved ancient theater in the world.

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

Southern Italy's spinning top village.

A miniature train-ride through Slovenia's largest cave system.

One of the best-preserved Roman amphitheaters is still used today, but for less brutal events.

Two geological phenomena in one precarious locale: a towering stone window, and a deep blue void.

One of Malta’s most important Neolithic sites sits in a suburban area south of the country’s capital.

The ancient tomb acts as a calendar that keeps perfect time.

Perfectly preserved ancient monastery in an impossibly dramatic location on a rocky island in the Atlantic.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

A fascinating insight into daily life in the Eastern Bloc.

Once part of an ancient international harbor, it's now an all-you-can-eat shrimp buffet for flamingos and other water birds.

This Armenian monastery was carved out of cliffs and named after the spear used to stab Jesus.

The most visited pilgrimage site in Armenia once held a saint in a pit for 13 years.

This ancient monastery complex was transformed from an island to a peninsula when the lake was partially drained.

Dedicated to the lives lost during a fatal stampede in the Nyamiha Station.

A symbolic graveyard for the villages that perished during the Nazi invasion of Belarus.

A striking Soviet memorial commemorates the liberation of Belarus from the Nazis.

A 300-kilogram egg sculpture that embodied a neighborhood revival.

The Frank Zappa fan club erected this monument to their prog-rock hero to mark a new era of post-Soviet Lithuania.

Things aren't quite what they seem at this mind-bending museum.