The world's first ice hotel is still one of the most elaborate and beautiful.

The railway carts travelers to central Athens's highest peak, which offers stunning vistas of the city.

A hat for every occasion can be found in this British Columbia haunt.

This scenic waterfront swimming pool is the longest salt water pool in North America.

A high point in Vancouver kitsch.

Founded in the 4th-century, the town of Pernik plays host to the Surva Carnival⁠—a magnificent display of masked Kukeri dancers.

Underneath this Byzantinian church lies a necropolis filled with ancient tombs and the ruins of previous churches.

This Central New York ghost town was once a prosperous railroad community.

This backwater graveyard in the Hamptons became a trendy burial spot and posthumous status symbol for famous artists.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

A tribute to a unique bike race that takes place every year.

On the Oregon coast there is a natural hole that seems to be draining the sea.

UNESCO-protected ancient burial ground.

A spectacular Bulgarian cave resembling a devil's head with a waterfall rushing down its throat.

A collection of art from Bulgaria's time as a communist state.

This tiny Bulgarian town offers a stunning location in the mountains and a storied history.

This historic black and white monastery is one of Bulgaria's architectural jewels.

The ceiling of Prohodna Cave in northern Bulgaria affords a peek at the sky via two deity-sized-eye-shaped holes.

Hanging within this medieval church are the bones of a beast allegedly slain by a fourth-century saint.

Those who own or stay at this 500-year-old, allegedly cursed house often meet terrible fates.

Armenian monks at an island monastery in the Venetian Lagoon make a rare rose petal jam.

This palatial spiral staircase was so unusual the name "snail" was given to the noble family who built it.

The plague quarantine island home to the alleged "Vampire of Venice."

Just another terrifying garden filled with hundreds of endlessly smiling doll people.