The hallucinogenic center of the ancient world.

What once sat in the world’s spotlight is today a largely disused ghost complex.

Large collection from the 3rd millennium BCE.

Where commuters walk through remnants of an ancient Greek necropolis.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

A restaurant and observation deck built in a unique broadcasting antenna.

Cold war icon and onetime "hole" in the iron curtain.

The most visited, and possibly most controversial, museum in Germany.

A fascinating insight into daily life in the Eastern Bloc.

A striking symbol of the Bulgarian capital.

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

Temple complex that once housed the famous statue of Nike.