Man-made mineral caves house massive bat colony.

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

The gutted remains of this Estonian mansion are a monument to a tragic love.

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

"There's nothing there," and other lies the KGB told us.

Digger attempting to hide itself under 300 tons of rubble.

Hotel designed by indie graphics artists.

Denmark's famous pseudo-hill.

In legend, this ancient dolmen was said to have been created when a troll tried to destroy a church.

The greatest amusement park in the world is wall-to-wall farting dogs, puking rats, and cows with exposed breasts for the whole family.

Four alabaster giants contemplate the tides on the shore of Denmark.

This Denmark theme park is part family attraction, part experimental archaeology project.

Nearly 40 miles and 1,000 years of limestone mines under Denmark.

The oldest amusement park in the world has been providing a nice spot to have some fun since the 1500s.

The world's largest maze is a nature park with nearly 200 decision points.

A natural wonder in south Denmark.

A walkable map of the world, made from soil and stone by one man.

This attraction was abandoned after the Chernobyl disaster.

The ghost town left by the worst nuclear disaster of all time is being taken over by nature and urban explorers.

340-foot statue built to honour the Heroes of the Soviet Union.

One of the world’s best microminiaturist, Nicolaï Siadristy displays his lifetime of tiny creations in this museum.

The deepest metro station in the world.

This unassuming museum's slogan translates to “there is a limit of sadness, anxiety has no limits."

The largest collection of death masks in Ukraine.