The original resting place of Queen Cleopatra and Mark Antony's only daughter.

Rebuilt several decades ago, its striking murals prevent it from being reconsecrated as a church.

Crossing a suspension bridge above a forest is the only way to reach this 12th-century monastery.

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

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

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

This ancient theater, restored in the 20th century, lives on as a venue for dramatic and musical performances.

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

UNESCO-protected ancient burial ground.

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

A collection of art from Bulgaria's time as a communist state.

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

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

Bizarrely shaped rock formations in northwest Bulgaria come with equally bizarre legends.

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

An abandoned saucer-shaped monument in the Bulgarian mountains.

A military fort has guarded the surrounding area from this key position since the 13th century.

A tiny chapel and burial site lurk underground in Jajce.

Carefully reconstructed after the Bosnian War, this 16th-century bridge stands as a symbol of the country's enduring multicultural heritage.

A field filled with carved medieval tombstones called stećak.

This picturesque monastery at the base of a cliff is a peaceful oasis open to all visitors.

These warring psychedelic crags commemorate an unsuccessful military operation.

A war-torn Olympic relic is being overtaken by graffiti and nature.

This cluster of little wooden huts once ground local farmers’ wheat into flour during the days of the Austro-Hungarian Empire.