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

The Emperor Tiberius' palace of debauchery.

Walk through a fairytale in Tuscany.

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.

The once forbidden "secret cabinet" of erotic art from excavations of Pompeii and Herculaneum.

The former Willingdon Airport started operations in 1929, in India's capital, Delhi. Now, it's used for maintenance runs and helicopter rides.

An airy Art Deco space devoted to the weird and wonderful folk art traditions of Mexico.

A 19th-century Baja cantina that many say is the birthplace of the margarita.

Gilded heaven for philatelists and architecture freaks, still in full working order despite sitting atop tremulous ground.

A quirky and charming restaurant founded by artists.

The only castle in North America to ever house European sovereigns.

66,000 pieces of art, donated by one of the world's richest men.

The 19th-century pharmacy (now a used bookstore) was featured in James Joyce’s "Ulysses," and has changed very little to this day.

The ancient latrines of the Greeks, in all their public glory.

A mysterious ancient cemetery with Roman sarcophagi and Lycian inscriptions.

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

While not Turkey's deepest underground city, this subterranean redoubt is the largest.

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

Hidden just under the waters around this Turkish island are the ruins of a once great city.

A Lycian city of the dead carved into the hillside of Southern Turkey, complete with startlingly human touches.

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

The final resting place of the Emperor of the United States and Protector of Mexico.

Two pillars set 10 paces apart commemorate the "last notable American duel."

A small museum in the Bay of Pigs gives the Cuban perspective on the famously failed U.S. invasion.