Somber memorial to the May 10, 1933, book-burning which took place on this spot.

Carved fountains poignantly placed in parks and in front of special monuments.

Fantastic views and thousands of love locks.

A meteorite-bounded town in Bavaria.

This abandoned coliseum was intended to be a grand Nazi rallying ground before it was halted at the end of the war.

This museum holds the most comprehensive collection of Armenian art in the world.

Horrifically creative torture devices and shame punishments line the walls of this chilling museum.

Every hour the doors open to reenact the legend of the heroic mayor who saved his town by drinking a gallon of wine.

The ruins of the first mountaintop observatory are just a hike away.

A castle from the Holy Roman Empire that hosts traveling youth... in its stables.

Blitzkrieg bop your way through Berlin's Ramones Museum.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

A monument to the three wars that led to German unification towers within a Berlin traffic circle.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

The bones of the Biblical Magi traveled to Constantinople and Milan before landing in their current home inside an elaborate golden reliquary in the Cologne Cathedral.

Hundreds of caves once used to store grains and animal feed.

This enormous censer uses a pulley system installed over 400 years ago.

The oldest Roman lighthouse still in use.

Natural stone arches form a walkable "cathedral" at low tide, then disappear entirely when the water returns.

This abandoned naval battery stood at the ready as recently as the 1980s.

A fortified city, home to a remaining population of five families

World's largest film studio, where visitors tour the decaying sets that litter the harsh desert environment.

The world's largest concentrated solar power plant.

God's Saharan sandbox of wrath.