America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

An iconic view point of the Sea of Galilee offers a look into Israel's past.

A Soviet-style monument, built after transferring the remains of heroes from their graves.

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

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

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

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

Outstanding, eerie frescoes and decorations fill this 19th-century monastery.

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

The remarkably well-preserved final resting place of a powerful ancient Thracian king.

UNESCO-protected ancient burial ground.

A miniature train theme park, free to the public, laying at the base of the Santa Monica Mountains.

An unfortunate geological resemblance to Satan has labeled this Pasadena gorge as a passage to the underworld.

Hiding amid the largest camellia collection in the country lies a charming children's maze, donated by a secret admirer.

"Holy Wisdom" overlooks the city that became its namesake.

Sofia's legislative center is continuously reinventing itself.

A striking symbol of the Bulgarian capital.

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

This architecturally eclectic fortress witnessed centuries of bloody turmoil, including the massacre of its ruling clan.

The ancient mosaics here are considered among the finest in the world, and serve as a stunning record of Greco-Roman daily life.

Beneath an ancient wishing tree lies an underground chapel with 12th-century frescoes and catacombs dedicated to a lady saint.

An ancient necropolis of magnificent tombs.

This sea stack in Cyprus is traditionally seen as the birthplace of the goddess Aphrodite.

The site of a prison camp where Cypriot resistance fighters were held in the 1950s.