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.

Space-age monument to an early 20th-century uprising.

This 3,800-year-old site contains markers used to study the movement of the sun and moon and create a lunar calendar.

A solar-powered primary school inspires hope and experimentation in a country ripe for energy innovation.

This fortress dates back to the 6th century and is also the site of a controversial abandoned restoration project.

This virtually windowless mass of smooth concrete is the only Catholic church in the city.

A curious little museum dedicated to the furry feline in the cat haven that is Old Town Kotor.

This World War I fortress is the perfect place to catch a Montenegrin sunset.

This memorial to local World War II heroes is slowly being reclaimed by nature.