Places Sputnicktatorship Wants to Go

The second-largest Jewish temple in Bulgaria was deserted after World War II, seized by the communist government and then abandoned again.

The site of many battles and tragedies, including the 40 maidens who leapt into the sea.

A spectacular Bulgarian cave resembling a devil's head with a waterfall rushing down its throat.

An ancient Thracian city where fire rituals were practiced on the largest cult altar in Southeast Europe.

A collection of art from Bulgaria's time as a communist state.

This historic black and white monastery is one of Bulgaria's architectural jewels.

A flamboyant five-story building in Bulgaria resembles a crawling snail.

This tiny Bulgarian town offers a stunning location in the mountains and a storied history.

The ceiling of Prohodna Cave in northern Bulgaria affords a peek at the sky via two deity-sized-eye-shaped holes.

An architectural marvel that spans the Arda River, and has stories of a haunted past.

Bizarrely shaped rock formations in northwest Bulgaria come with equally bizarre legends.

This massive concrete sculpture is said to be the heaviest communist monument on Earth.

Once home to some 250,000 volumes and priceless art artifacts, this Polish estate was a target of bombing during World War II.

This museum in the tower of the oldest church in Gdańsk, is home to centuries-old time-keeping devices and the world's first pulsar clock.

This mushroom-shaped rock has frustrated and fascinated locals for centuries.

The majority of the highest mountain in Poland is actually located in a different country.

A somber memorial honors the hundreds of thousands of lives lost at this labor and extermination camp.

This symbol of Polish heritage survived the occupation during World War II, hidden in plain sight.

Built to transport German U-boats through the never-completed Masurian Canal, the locks near this Polish village are now home to a rope course.

The shattered remains of the world's once tallest structure.

A miniatures park with a model of Wolf's Lair as it looked during World War II.

Gliwice Radio Tower, likely the tallest wooden structure in the world.

The first, and perhaps only, monument dedicated to Wikipedia.

People in Poland have rallied to save this unnatural desert from being reclaimed by the forest.