A striking symbol of the Bulgarian capital.

An architectural marvel that spans the Arda River, and has stories of a haunted past.

At this 16th-century monastery in rural Bulgaria, visitors can also spend the night.

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

An abandoned saucer-shaped monument in the Bulgarian mountains.

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

UNESCO-protected ancient burial ground.

This massive stone and steel monument remembers a century-old battle that cost thousands of lives and nearly destroyed the city.