An abandoned monastery sits on a far-off island in the Adriatic Sea.

Come for the chanting, stay for the monastical vegan buffet.

On the shores of Lake Superior, a small group of monks makes sacred sweets.

The oldest of Venice's plague quarantine stations, designed to keep the medieval city safe from disease.

Thousand-year-old Viking runes adorn an ancient Greek lion at the entrance to the Venetian Arsenal.

Venice's "Island of the Mad."

Originally a leper colony, the island is now an Armenian monastery that's home to an incredible manuscript library and eclectic museum.

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

Ride a boat through this magnificent underground world, which now doubles as a theater.

The "World's Largest Underground Business Complex," a 55,000,000-square-foot city underneath Missouri.

This amazing ancient cave was kept secret for seven years to protect it from the public.

An enchanting natural wonder in Puerto Rico's Camuy River Park.

France's highest manned weather station is the only one still inhabited by meteorologists.

The lost Latin words were reconstructed using the holes from the nails that once pinned them in place.

This French "sea of rocks" is packed with stunning rock formations and its own medieval castle.

Cloistered comestibles are served with style at this French Orthodox monastery.

This whimsical public art installation is a unique homage to Liverpool's industrial heritage.

Another entry into the world of Edinburgh's pop-up artworks.

The legacies of two historic Black American institutions live on in this unassuming brick building.

Unruly residents were housed in this one-person cell until the Black Maria arrived.

A local dive where religious kitsch, Southern identity, and queer culture collide.

Quirky outsider art transforms this garden shop into a little stone fantasyland.

Lumps of significant stone from around the world surround a flaming monument for peace.

Hundreds of stones dangle from barren trees in the middle of the desert.