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

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

An abandoned saucer-shaped monument in the Bulgarian mountains.

A unique collection of Soviet military artifacts lies hidden away in a disused train, in the unrecognized Eastern European republic of Transnistria.

A forgotten remnant of the Soviet Union, Transnistria is an unrecognized country hidden behind a heavily militarized border between Moldova and Ukraine.

This abandoned Soviet circus is slowly being restored to its Communist-era glory.

A memorial museum to the political prisoners who were held at Sighet Prison, once one of the most feared places in Romania.

Packed to the ceiling with antique taxidermy and hunting arms.

This enormous abandoned prison was once dubbed the "Bastille of Romania."

A collection of items from a way of life that no longer exists.

A celebration of all things tacky, garish, and bizarrely creative in the Romanian capital.

This bone-filled cave got its name after they found 140 bear skeletons inside.

The European towns of Brașov and Râșnov each have proud signs reminiscent of the Hollywood sign.

This Romanian village may have been drowned, but it is long from forgotten.

The Natural History Museum that time forgot.

This massive underground salt mine now holds a sci-fi theme park in its depths.

A Stalinist prison camp for the wives and children of men accused of betraying the Soviet state is now a memorial museum.

This sprawling market is a one-stop shop for traditional Kazakh foods, from mare’s milk to sheep’s head.

Granny Smiths and Fujis can both be traced back to Kazakhstan, where apples still grow wild.

A brilliant turquoise lake in the mountains.

An abandoned Soviet-era mining town in the mountains of South Kazakhstan.

The lovely lake that was naturally dammed, then naturally destroyed, then unnaturally saved.

Submerged trees jut ghost-like out of an idyllic turquoise mountain lake.

World's oldest and largest space launch facility, once a secret missile testing site.