A medieval church built up to defend its village.

The European towns of Brașov and Râșnov each have proud signs reminiscent of the Hollywood sign.

This hauntingly beautiful cemetery outside a medieval citadel is full of winding paths and ivy-covered graves.

Nine centuries-old fortresses guard the walls of this medieval Romanian city.

This once-derelict building is now one of the most beautiful bookstores in the world.

The bust of Romania’s most notorious ruler, Vlad Dracula aka "Vlad the Impaler," keeps watch over the ruins of his medieval court.

Large military radio station without transmitting towers.

The design of this beautifully crafted building was inspired by Norwegian glaciers.

An intricately carved Viking church overlooks a glistening fjord.

A beautiful Arctic museum and nature center preserves the culture of the Sámi people.

If you visit Santa's village, you can get your passport stamped to show you crossed into the Arctic Circle.

Finland's oldest astronomical observatory once played a crucial role in seafaring and timekeeping.

Roughly 17 million letters to Santa have found their way to this Arctic Circle post office.

This endearingly discomfited urinating statue commemorates the sneaky pees had by us all.

The fishing boats that moor in this small lagoon enter and leave through a tunnel to the sea.

A monument to the man who almost killed Hitler.

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

A Black Forest cuckoo clock theme park features one timepiece big enough to walk inside.

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

The prototype for all Nazi concentration camps.

The last remnants of a massive medieval wall that once encompassed the city of Berlin.

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

A striking 12th-century-style castle built on the edge of a cliff.

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