Soaring over 6,000 feet in the Bavarian Alps, this beer garden was once Hitler's 50th birthday present.

This Prague museum collects brutalist relics and memories from the country's former Soviet rule.

Created as a "model concentration camp" to hide Nazi atrocities from the international community, this former camp-ghetto now holds a museum and memorial honoring the lives lost within.

An effigy of a trapped paratrooper dangles from a Normandy church to commemorate one remarkable D-Day event.

A memorial to the nearly 10,000 American soldiers laid to rest on the beaches of Normandy during WWII.

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

The ruins of the largest gladiatorial school in Rome are largely hidden under modern streets.

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

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

Breathtaking and huge 430 year old maps of Italy.

An exhibition of preserved locomotives housed in a 1950s depot shows the history of Denmark's railway.

Generations have refused to move this doll from its dusty resting place to preserve a castle from a watery fate.

The greatest amusement park in the world is wall-to-wall farting dogs, puking rats, and cows with exposed breasts for the whole family.

The original home of the Lego has a huge amusement park dedicated to the iconic plastic toy.

Four alabaster giants contemplate the tides on the shore of Denmark.

The old observatory in Copenhagen has a spiral corridor used as a racetrack.

This colorful artistic feature atop a Danish art gallery allows visitors to stroll through a rainbow.

Vortex-shaped aquarium hosts Europe's largest school of piranhas and other ocean creatures.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

Copenhagen's celebrated theme park and gardens.

This life-size replica of the Statue of Liberty's flame is also a tribute to Princess Diana by default.

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

A restaurant and observation deck built in a unique broadcasting antenna.

The bunker where Hitler took his own life is hidden under this deliberately ordinary parking lot.