A museum dedicated to the history of a terrifying secret police is now held in their former headquarters.

This water-tower-turned-high-end-apartment building was once the site of an early Nazi concentration camp.

Cold war icon and onetime "hole" in the iron curtain.

A whimsical and twisted animatronic monster tour beneath the streets of Berlin.

The most visited, and possibly most controversial, museum in Germany.

This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

Cozy basement bar sports an inventory of over 2,000 beers.

A little sculpture with a large wardrobe.

This small town in the Netherlands has no roads but instead, miles of canals and over 100 bridges.

Colorful and chaotic stacked hotel in North Holland.

The world's first zoo for microbes collecting the horrible and wonderful things living on and around us.

Building Men of War and Indiamen from Holland's Golden Age.

This Netherlands museum holds a gloriously mechanical collection of ornate musical automata.

A grassy pyramid named after a French battle.

"Respectful to the dead, safe and sanitary to the living, dedicated to the Genius of Memory..."