From prostitutes to soldiers to business men, the dead in this graveyard are a microcosm of Singapore's history with Japan.

What was to be the world's most secure Cold War document vault ended up as just a few shallow caves.

An old world fairytale-land with over 350 fairy folk figurines hidden amongst 800 year old cedars.

A local landmark that has become a hub of graffiti and urban exploration.

Hidden beneath a bridge, this waterfall is known for the large amounts of graffiti painted on its base.

This abandoned dream castle and its cemetery look out over the city that once inspired their creation.

No one is sure what to do with this WWII shipwreck that sits at the bottom of the Thames, still loaded with tons of explosives.

In the middle of an extremely unforgiving and desolate high desert is the most secret military facility in the world.

Four-story concrete hotel never opened to customers.

This neon lit Georgian cave claims to hold the boulder Prometheus was chained to.

What else would you call a playground hidden in Alabama's oldest and largest cemetery?

The post-apocalyptic remnants of a bucolic town ruined by a plane crash.

The location of the last witch trials of Italy, known as "The Salem of Europe."

On Japan's Tashirojima Island, cats are king.

A small island less than half a mile from Venice is a forbidden island with a dark and twisted past.

The remains of a paranoid inventor's hidden workshop lie in beautiful ruins amidst a Canadian park.

This abandoned NASA launch site is now a memorial to a trio of astronauts who were killed there.