This 15th-century cave complex is one of the very few monasteries to stay open throughout World War II and the Soviet regime.

Legend has it that Napoleon Bonaparte fell in love with this Gothic church.

This 700-year-old structure is one of the most unique architectural and historic monuments in Gdańsk.

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

A hidden art gallery in an abandoned Warsaw fort.

A small part of Russia that does not touch any other part of Russia.

A monument to the defenders of the Arctic in Murmansk, Russia.

The deepest hole drilled in the name of science, where evidence of Precambrian life was found.

Propped high atop the peak of Mount Gamsutlmeer, this abandoned village is one of the oldest settlements in the region.

An enormous Soviet aircraft, the only one of its kind, stands at the deserted shore of the Caspian Sea.

Replica of mosque destroyed by Russia in the 16th century.

This Russian religious complex is a Frankenstein's chapel that includes influence from almost all the major faiths.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

A surreal museum of extraordinary industrial objects.

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

The art museum is decorated with creatively remodeled pre-Nazi swastikas.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

Copenhagen's celebrated theme park and gardens.

This street has over a half-dozen names, all at once.

This cheeky restaurant has a serious devotion to lard sculptures.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

This statue of a falling man commemorates a teenage martyr of the Hungarian Revolution.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

The apartment building where JFK's assassin lived after defecting to the Soviet Union.