A UFO-shaped event building originally intended to be a science museum showcasing the future.

A striking memorial to the Jews of Leiden who were murdered during World War II is scattered throughout the city.

This fairy tale forest hides scenes from some of the more obscure and bizarre Western nursery stories.

An icon of International Style architecture on the outskirts of Rotterdam.

Inside this metro station is a section of the city's former medieval fortification.

This hotel was once home to a steamliner company and became the final rest stop for Europeans heading to the New World.

Scale model of St. Peter's Cathedral (Rome) in the middle of a small Dutch town.

Brussels' favorite peeing boy has a sister.

A little sculpture with a large wardrobe.

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

Once the fallout shelter of a dictator, this sprawling bunker is now a combined history museum and contemporary art gallery.

An Albanian monument to the Communism that nearly crushed the country is now a crumbling wreck.

A museum dedicated to the former country.

Nikola Tesla's ashes are held in a golden sphere, surrounded by his works.

This effigy of Peter the Great is greatly disproportionate.

A scale model of Russia so big visitors are offered binoculars to rent so they can see the whole thing.

A 250-year-old timepiece-automaton adorned with golden mechanical birds, which still sing to this day.

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

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

An imperial church bombed to ruins during WWII now stands as a jagged memorial.

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

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

Berlin's old airport.

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