In terms of history and architecture, this is one of the most remarkable cemeteries in the world.

After the Cuban Revolution, the famous rum company had to leave their swanky headquarters behind.

A Cuban artist reclaimed his impoverished neighborhood as a dreamy folk art kingdom.

A focal point of the Cuban government, this city square features one of the most iconic images in the country.

Cuba's historical trains remind natives of their country's sugary sweet past.

Neo-cave art on the macro scale.

His music once banned in Communist Cuba, John Lennon is now immortalized in bronze by Castro, who considers Lennon a "fellow dreamer."

This communist country can still appreciate its fragrant past.

This building has two facades of clashing architectural designs.

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

"Holy Wisdom" overlooks the city that became its namesake.

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

Sofia's legislative center is continuously reinventing itself.

Underneath this Byzantinian church lies a necropolis filled with ancient tombs and the ruins of previous churches.

An apparition of Virgin Mary in Herzegovina.

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

The medieval fortress of Prince Lazar of Serbia is now an archaeological park.

A series of metal trumpets in the heart of Ruma represents the seven Vojvodina People's Liberation Brigades.

An eerie fountain commemorating the death of a boy that sparked a small war in the 19th century.

One of the most important fortresses along the Danube now lies in ruins.

A NATO bombing took the lives of 16 civilians in 1999—the ruins remain in the center of Belgrade.

Arguably Belgrade's only example of pure Art Deco architecture.

A large concrete replica of a 12th-century figurine.

This statue of the famed author, actor, and journalist is made entirely of screw-nuts.