A crumbling cathedral condemned by an earthquake.

Volcanic activity causes small pools of super-heated mud to boil furiously.

This unassuming retro burger joint was billed as “diner of the future” at the 1939 World's Fair.

Last residence of H.P. Lovecraft featured in his story "The Haunter of the Dark."

Ride the subways of yesteryear.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

The only swimming pool listed on the National Register of Historic Places is emptied and refilled each day with naturally filtered water.

The beautiful baroque library of the Hapsburg empire.

The design of this beautifully crafted building was inspired by Norwegian glaciers.

An unusual vending machine designed to support mourners during funeral ceremonies at Zurich's largest cemetery.

One of several skulls claiming to belong to the beheaded St. John the Baptist is on display at this Roman church.

There is a strange little carving of a person seemingly crushed by a pillar behind the remains of St. Thomas Aquinas.

Strange masks and obscure costumes are housed in this old Madrid corrala.

The best place in the world to buy tinned fish.

This tiny, painted door at the base of a tree stump has been a fixture of the Harvard University campus for decades.

A vast necropolis where you'll find the elaborate mausoleums of Argentinian tango stars.

A replica of a famous Greek statue adorns the front of the unusual home of architect and alchemist Humberto Pittamiglio.

Dr. Farid Mattar's Monument of Peace.

A pocket of jungle amidst urban expansion in Panama.

In Costa Rica's cloud forest, the roots of a woody ficus create a botanical bridge.

This group of small islands on Lake Nicaragua formed after an eruption of the Mombacho volcano.

Antoine de Saint-Exupéry's 1943 book shares a surprising connection with El Salvador.

For this chef, an active volcano is his oven.

A "time traveler's" vision of human history stretches throughout Mexico City's Copilco metro station.