A historic London cemetery now serves as a nature park incorporating gravestones & memorial statues.

A vast overgrown cemetery, once known as one of London's "Magnificent Seven."

Hidden beneath the streets of London is a secret subway that only carried mail.

Winding paths and ramshackle mausoleums in the oldest "park cemetery" in London.

This unique structure allowed boats to bypass underwater mine barriers in the channel to enter the harbor.

A memorial dedicated to the 29,000 Istrian freedom fighters of World War II.

This fountain has a growing (animal) population, and might also be growing in size.

This abandoned Croatian stronghold never saw a great deal of conflict but it is still a beloved relic nonetheless.

A World War II evacuation tunnel turned into a history display of Croatian state and people.

A peculiar museum that includes many drunken tales, a drunk driving simulator, and much more.

Enormous lake at the bottom of a unique cave system.

Sleep in the hay, spin the wheel and eat grain pellets to your heart's delight.

An abandoned network of military bunkers and tunnels open for anyone willing to descend into the darkness.

The abandoned remains of this once-thriving hotel looms over the city, awaiting an uncertain future.

The walls of this medieval church are covered with perfectly preserved frescos, including a pristine example of the Dance of Death.

Some of the best-preserved specimens of the monumental medieval tombstones found throughout Bosnia and Herzegovina.

This eccentric folly house was designed by Romanian thinker Bogdan-Petriceicu Hasdeu, with a helping hand from his deceased daughter's spirit.

Some call this eerie forest of crooked trees the "Bermuda Triangle of Romania."

A small museum in this border city displays the contraband art that has been stolen back from smugglers.

The giant metal fruit was once the symbol of a large farm.