The final resting place of the great navigator, or maybe his brother.

A 16th-century Andalusian palace.

Standing in a state of "arrested decay," this ghost town allows for a detailed peek into Gold Rush life in an unusually harsh climate.

Five sultans and their families rest in eternal splendor, teeming with overlooked beauty and drama.

A marvel of Byzantine engineering under the streets of Istanbul.

In this historic region, homes and churches are carved into ancient volcanic rock formations.

The deepest underground city in Turkey was designed to protect 20,000 people behind massive stone doors.

What is left of the pillar of Saint Simeon, the voluntary martyr who climbed the column to give his sermons, remaining perched there for thirty-seven years.

Ruins of the Crusaders' headquarters.

Only a handful of these gorgeous historic waterwheels remain but even those are in danger from local unrest.

Mysterious lost empire of the Silk Road.

This fairytale castle was built as a show of power but was nearly torn down thanks to its history of torture.

Ancient artists in the middle of nowhere.

A desert that rolls right up to the ocean, where it's so dry animals live off the fog.

This "dead marsh" sits among the largest sand dunes in the world, a forest frozen in time.

Unexplained bald patches in the landscape grow and recede over time, as though they are somehow alive.

Bizarre living fossil only grows in a small chunk of the Namib Desert.

One of the largest Buddhist stupas in the world keeps an eye out in every direction.

Brussels' favorite peeing boy has a sister.

A little sculpture with a large wardrobe.

This Greek temple, open only an hour a day, was the site of a war of tastes between an architect and an artist.

Three floors of musical instruments coming from all corners of the world and hundreds of years of musical history.

From Tintin to the Smurfs, Europe's greatest graphic icons are celebrated in a grand Art Noveau gallery.

Theme park featuring miniature replicas of European monuments.