A giant bronze monument to Kim Il-sung and Kim Jong-il is one of the most sacred sites in North Korea.

A symbol of the Workers' Party of North Korea.

One of the largest public squares in the world, named after the former DPRK supreme leader.

A former palace transformed into a mausoleum for North Korea's supreme leaders.

The hallucinogenic center of the ancient world.

Monasteries on rock pillars, once accessible only by frayed ropes.

An Albanian monument to the Communism that nearly crushed the country is now a crumbling wreck.

This exclusive resort has completely covered a tiny Balkan island in a 5-star warren of guest rooms.

These historic defenses ensured the city within would survive hundreds of years of occupations, sieges, and invasions.

Bridge that died in war and was resurected.

Oriental bazaar in the heart of Sarajevo.

The place where World War I began.

A number of craters left by fatal mortar strikes have been filled with red resin to remember those lost during the Siege of Sarajevo.

This one-time health resort was used by aristocrats around the world.

A whimsical bridge adorned with decorative dragons.

A pair of connected skyscrapers form this symbolic gateway.

A vast Communist-era exhibition space in the Bulgarian capital.

A striking symbol of the Bulgarian capital.

Romania's triumphal arch looks out over Bucharest.

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.

This derelict superstructure was a very important warning system for the Soviet military.

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

Northern Ireland's Brobdingnagian stepping stones.