An ultra-modern diversity park in Denmark has turned an entire city block electric pink.

It's always summer at the beach inside this former airship hangar.

This former Masonic lodge has been transformed into part museum, part bar, all awesome.

This ancient ruined monastery has been destroyed by fire so many times that it seems like God hates it.

A formerly opulent Italian village is now a crumbling ghost town that no one really knows what to do with.

The soulless eyes of 82 bronze children stare on forever in remembrance of a horrifying World War II massacre.

This Irish show cave is said to have been the site of a Viking massacre that claimed 1,000 lives.

This remote island village was in danger of depopulating completely until a tunnel was built to connect it to the rest of the world .

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

This centuries-old Italian chapel hangs midway down a sheer cliffside.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

The remains of this ornate chapel now act as a portal to a cramped French cemetery.

This ancient Irish tower could easily have stood in for Rapunzel's prison.

This medieval Italian town is a sheer (and beautiful) cliffside defense.

This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.

These secluded and abandoned anti-aircraft defenses have become one the most scenic viewpoints in Barcelona.

Take a stroll through the hellish grotesques of Hieronymus Bosch in this elaborate Netherlands church.

The attic of a four-century-old canal house hides a clandestine church.

From Austrians to Nazis to Soviets, this historic Budapest fortress has a history as complex as the city itself.

This Danish rock field is actually a sprawling ancient cemetery holding the bodies of 700 Vikings.

The site of a concentration camp where inmates were made to take part in one of the largest counterfeiting operations in history is now hauntingly empty.