This western-themed amusement park is host to a large number of decaying animatronic cowboys.

A South African bar inside a hollowed out 6,000-year-old Baobab.

This striking memorial is one of Estonia’s most controversial Soviet leftovers.

This dizzying tower was built to better broadcast the 1980 Moscow Olympics.

The widest natural waterfall in Estonia is a sight to see in all seasons.

A decommissioned submarine base makes a great space for graffiti art.

This medieval Estonian tower provides access to a series of tunnels that have been home to soldiers, punks, and fine art.

A clerical error gave rise to this imaginary micronation in the southwestern corner of Estonia.

Man-made mineral caves house massive bat colony.

A secluded art gallery hidden within the cellars beneath Tallinn’s medieval monastery.

This disappearing geyser has been attributed to witchcraft, but really it's all about rainfall.

The ruins of an Estonian prison are drowning in the quarry lake where the convicts were once forced to work.

The fairy tale castle of the "fairy-tale king."

This futuristic German spa allows visitors to float in a pool of salt water while zoning out to underwater techno.

A tour of underground Berlin takes you through WWII air raid shelters and tunnels used to smuggle people out of East Germany.

A whimsical and twisted animatronic monster tour beneath the streets of Berlin.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

An eerie, derelict amusement park in Berlin.

Not far from a popular beach, an unfinished, abandoned mansion for Bulgaria's last communist dictator.

This communist behemoth is the heaviest building in the world and a legacy of a brutal regime.

The Natural History Museum that time forgot.

Even drowned in an ocean of toxic waste, the remnants of this Romanian village stand tall.

A muddy alien landscape that is home to rare species of exotic plants.

A giant portrait of an ancient king looms over the river.