The former Nazi concentration camp stands as a museum to remember this dark chapter in European history.

A fairytale Gothic castle steeped in Nazi treasure conspiracy theories.

Countless stories attempt to explain Poland's mysterious J-shaped trees.

The walls and ceiling of this Polish church are decorated with thousands of skulls, with another 21,000 skeletons just below.

Stunning wetlands ablaze with pink lotus flowers.

The world’s largest work of glass art hides in this stunning Taiwanese subway station.

An ancient stone fortress considered by many to be the eighth wonder of the world.

The largest pool at its elevation sits on top of one of the most expensive resorts in the world.

Singapore's landscaping project is home to 18 incredible Supertrees.

This wondrous waterfall rushing down a green-covered mountain wasn't discovered until 2010.

An eatery in a shallow river where diners can enjoy their meal mere feet from the base of an artificial waterfall.

The largest dam in the world and the site of a potential disaster.

Known as the most dangerous bridge in the world, the Hussaini Hanging Bridge is only one of many precarious rope bridges in Northern Pakistan.

This lost city belongs to one of the earliest civilizations in the world.

Reputedly haunted sandstone necropolis with exquisite stone carvings.

Jumping-off point for a climb up Mt. Everest is the most dangerous airport in the world.

This gem-encrusted temple is said to contain some of the Buddha's hair which can make the deaf hear and the blind see.

Gigantic unfinished stupa and the world's 2nd largest bell.

Over 2,000 ancient temples dot the Myanmar landscape at the site of this famed archaeological site.

This spiritual landmark for practicers of Shamanism is drenched in milk and vodka and covered in blue scarves.

The grassy landscape is home to the world's last truly wild horses.

An underwater restaurant, surrounded by a coral reef.

These jagged limestone blades cut out through the canopy of the jungles of Borneo.

Holy Hindu shrine in an enormous, monkey-filled limestone cavern.