One of the world's tallest waterfalls wasn't revealed to the world at large until 2006.

If you’ve ever seen a picture of Machu Picchu, then you’ve seen a picture of Huayna Picchu—you just didn’t realize it.

A remarkable geological formation resembling a forest made of stone.

Keshwa chaca, among the last handwoven Incan bridges, crosses Apurimac Canyon in Peru.

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

After a nearly successful attempt on Hitler's life, the conspirators met their fate in the courtyard of this Berlin building.

An abandoned swimming pool decays on the outskirts of Berlin.

This Berlin island is home to a flock of free-roaming peacocks, as well as a historic ivory folly.

The medieval institution is home to the precious treasure stolen in World War II in one of the greatest art thefts of the 20th century.

An ornate century-old elevator still connects the two halves of Bad Schandau.

This former Nazi castle was built as a school to train what would have been the future of the Third Reich.

The history of German architecture is explored across this fairy-scale mini-city.

Money made from smuggling sugar helped create this wondrous rock maze in honor of the Prussian Queen Louise.

This museum tells the story of lake dwellers from 4000 BC to 850 BC, replete with stilt houses and goats.

The oldest Jewish cemetery in Europe survived Hitler's Germany.

This ancient ruined monastery has been destroyed by fire so many times that it seems like God hates it.

Once the tallest building in the world, this abandoned church is now a monument to the destruction of WWII.

Explore the complex ecology of this multifaceted nature preserve by riverboat.

These 18th century gardens tell a rocky story of the son of Odysseus.

Slaughterhouse Five opens its dank doors to fans of Kurt Vonnegut.

This unique Renaissance castle was turned into a home for Nazi occultism.

A 12th-century fortress containing some of Berlin's oldest buildings.

Living trees form the structure of an open-air palace.

A small but immensely extravagant palace built by the "Night King."