Get past the gatekeeper's apartment and enter an elaborate hoax of a restaurant with a Masonic feel.

A collection of miniature, symbolic sculptures hides in plain sight across Kyiv.

This exquisite, alienesque piece of Soviet architecture is being threatened by modern shopping malls.

The medieval prince founded the first library in Ukraine at Saint Sophia's Cathedral where he was interred.

This underground transport hub doubles as an art gallery.

This oddly shaped building is a surprising Soviet-era crematorium.

A quirky collection flush with information on commode culture from ancient times to modern day.

The haunting complex honors the millions of Ukrainians who died in the forced famine under Soviet rule.

The deepest metro station in the world.

An Art Nouveau building covered in animal gargoyles and grotesques.

340-foot statue built to honour the Heroes of the Soviet Union.

A reconstructed medieval gateway that was the magnificent entrance to the capital city dating back to 1037.

At night, this memorial illuminates a ghostly outline of a footbridge that connected two sections of the Warsaw Ghetto.

Once home to some 250,000 volumes and priceless art artifacts, this Polish estate was a target of bombing during World War II.

An artificial date palm stands as a memorial to Warsaw's Jewish community.

The last king of Poland was interred in this church nearly 200 years after his death.

This colorful and quirky set of pegasus sculptures celebrate the works of poet Zbigniew Herbert.

Atop this library is one of the most beautiful green spaces in Warsaw.

The Polish capital has had a deep connection to its guardian mermaid for almost a millennium now.

A menacing statue of this mythical creature can be seen at the legendary site of the monster's lair.

A tribute to the Polish insurgents who fought in the failed attempt to end their city's Nazi occupation.

This man-made mound monument was built out of soil from all across the Polish empire.

St. Mary's features one of the most spectacularly decorated cathedral interiors in all of Europe.

A floundering Polish shipyard was once the soul of the Solidarity movement that capsized communism.