A UNESCO-protected spiritual seat of the Old Serbian Kingdom and Empire.

A monastery considered a state-protected cultural monument of exceptional importance, founded in the 14th century by Serbian King Stefan Dečanski.

A 14th-century Serbian Orthodox church that was once converted into a mosque under the much-disfavored Ottoman Empire.

An archaeological site believed to be the burial place of the "mother of us all."

The headquarters of the Mahanikai school of Buddhism, Thailand's largest monastic order.

On stormy days debris from this unfinished and abandoned skyscraper rains down on the Bangkok streets.

Considered an architectural abomination by some, this metal-clad building is known as 'little red riding hood' by locals.

This feat of Brutalist architecture is also known as the Three Sisters.

Built to give thanks for the passing of a plague epidemic, this cathedral is a one-of-a-kind architectural hybrid.

The hairpin turns in this mountain road take the shape of a letter—is it a coincidence or a symbol of love?

An Art Deco Icarus statue adorns this abandoned gem of Yugoslav Modernist architecture.

A small memorial to a deadly night in Serbia that shook the world before it was swept under the rug.

Dynastic Home of the De Piro Family.

This church is named for one of the most dramatic tales in the early Christian church.

Now harmless, this looming post struck fear into the heart of medieval troublemakers.

For the last century, this international border within a small town has appeared and disappeared various times.

Historic slum of Tartu.

A historic scientific breakthrough that crosses nine borders.

Walk along the medieval fortifications that have been protecting Tallinn since the 14th century.

During the Soviet era, the spire of this longstanding church was used as a radio transmission tower.

Spend your honeymoon where the Devil had his wedding.

Estonia's largest creative city is a vibrant bohemian hub located within a former industrial complex.

Learn about the last river many crossed to find freedom from slavery in the United States.

Abstract monuments express sorrow and resilience at the site of a horrific massacre in Nazi-occupied Serbia.