Budapest's Communist-era statues, banished to the suburbs.

This Hungarian castle was built out of cardboard and wood until it proved so popular that it got upgraded to stone.

This small exhibition displays equipment and artifacts once belonging to the feared Stasi secret police.

The largest free-standing aquarium in the world resides in a hotel lobby in Berlin.

For patriotic Russians, this memorial honoring the Soviet soldiers who died liberating Berlin in 1945 is the most sacred location outside of Russia.

Gardens representing parts of Asia, Europe, and the Mid East are tucked away among the Soviet-style buildings in East Berlin.

This World War II bunker now survives as a documentation of the Nazi regime and war crimes.

A fascinating insight into daily life in the Eastern Bloc.

A whimsical and twisted animatronic monster tour beneath the streets of Berlin.

A bloody history is captured in this former prison turned museum.

An ancient sanctuary that has long been a holy site for the Chaldean Christian Church.

The sacred shrine of the Yazidis.

An ancient fortified mound raised over the millennia from settlements built one on top of the other.

Qshla Koya is an Ottoman fortress located on a hillock in the central quarter of Koya.

A grotesque collection of wax limbs depicting the symptoms of venereal disease.

Legend says this sacred tree was a gift from goddess Athena.

Heralded as the world's first theater, these ruins are often overlooked as they reside in the shadows of the Acropolis.

A sharp sculpture made of thousands of pieces of jagged glass.

An ancient octagonal weather station named for the eight Greek gods of wind.

The railway carts travelers to central Athens's highest peak, which offers stunning vistas of the city.

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

This black sand beach was crafted from volcanic explosions including the historic Minoan eruption.

A Bronze age settlement on the Greek island of Santorini might have been the inspiration for Plato's Atlantis.

A minotaur, a labyrinth, and a dubious restoration pull in visitors from around the world.