A collection of outdoor art by renowned muralist Robert Dafford depicts the history of a flooded city.

A visualization of three catastrophic floods that led to the creation of the famed Flood Wall.

In the Shawnee National Forest, amazing rock formations peer through the treeline.

This building has two facades of clashing architectural designs.

Sofia's legislative center is continuously reinventing itself.

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

A striking symbol of the Bulgarian capital.

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

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

A shopping mall housed in a historic cinema and hiding ancient ruins under its floors.

A gigantic statue of a Russian soldier watches over the ancient city of Plovdiv, a prominent reminder of the Soviet period in Bulgaria.

A roadside spring pooling in an old bathtub where anyone can stop and sip.