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

Thousands of narrow alleyways in an ancient medieval city make up what's believed to be the world's largest car-free urban zone.

A bright little alley in La Boca is a part of tango history.

This one-time health resort was used by aristocrats around the world.

A whimsical bridge adorned with decorative dragons.

A musical instrument played by the sea.

Where the lovelorn find a home for their sentimental keepsakes.

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

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

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

A 16th century chapel decorated with bones, skulls, and entire bodies hanging from the wall.

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

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.