Where the lovelorn find a home for their sentimental keepsakes.

A musical instrument played by the sea.

A chain of 16 wondrous lakes formed as a result of the gradual dissolution of soluble layers of bedrock.

An ethereal glowing blue ocean cave in Croatia.

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

Its frescoes depict the likeness of Marshal Tito, Karl Marx, and Friedrich Engels burning in hell.

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

One of the world's oldest olive trees, thought to be over 2,000 years old.

Bronzes and busts that once stood in the city's main squares are now relegated to a small hidden courtyard.

What happens when you cross a mayor and a painter?

A medieval bridge stretches over a sulfur-rich river that leads to year-round natural hot springs.

A naturally beautiful, seemingly bottomless deep blue spring.

Founded in the 4th-century, the town of Pernik plays host to the Surva Carnival⁠—a magnificent display of masked Kukeri dancers.

A mysterious tunnel hidden in the shadows of a colorful, historic sanctuary.

Ruins of an early Roman Christian church dating back to the 4th to 5th centuries.

Rock carving created 1,300 years ago 75 feet off the ground.

An unfinished complex built for children from around the world sits abandoned on the Black Sea coastline.

A mountain pass in Bulgaria's Balkan Mountains was the site of four historic battles.

A magnificent, glittering building tucked into a tiny Bulgarian mountain town.

Mysterious standing stone formations looks like a petrified forest.

In a long-dry lake bed, these groups of massive stone pillars bear a striking resemblance to clumps of everyone's favorite fungi.

The second-largest Jewish temple in Bulgaria was deserted after World War II, seized by the communist government and then abandoned again.

The site of many battles and tragedies, including the 40 maidens who leapt into the sea.

An ancient Thracian city where fire rituals were practiced on the largest cult altar in Southeast Europe.