This naturally heated mountainous creek has created a group of neon blue pools of potentially deadly boiling water.

An historic and oft-filmed spot for musclebound iron pumpers on the Pacific coast.

After starting as a whimsical tourist attraction that eventually found its way to ruin, these renovated canals offer a lush and exotic locale on the Pacific Coast.

A cozy bookstore and coffee shop in the heart of Cartagena's Old City.

The caldera of this mini-volcano has been turned into a naturally heated mud bath.

This huge green space packed with activities will make you forget you're in the middle of the Ecuadorian capital.

Legend says if this neo-Gothic basilica is ever officially completed, the world will come to an end.

The most famous location in China was home to whole dynasties worth of imperial rulers.

Exploring the wilder, more passionate sibling of Erg Chebbi feels like discovering a secret sun-kissed planet from another galaxy.

God's Saharan sandbox of wrath.

Traditional 11th-century outdoor tannery.

An awe-inspiring mosque in Morocco with one of the tallest minarets in the world.

Fortune tellers, snake charmers, poets, and storytellers all gather on this historic square in Morocco.

Founded as a refugee camp, now a popular tourist spot.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

Macabre astrological automaton clock dating to the late 1400s.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

Siberian husky that delivered a life-saving antitoxin.

The "Gateway to the Arctic" connects Barrow's indigenous population with the sea and its traditional industry: whaling.

An eccentric inventor's castle home with its own indoor weather system.

Experience the hysteria of a 17th century witch hunt through goofy reenactments and wax dummies that should probably be burned at the stake.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

This nearly 200-year-old restaurant's history includes an exiled French prince, JFK, and a very hungry Daniel Webster.

A former waterfront market is now in the center of town due to some interesting Boston engineering.