Thousands of coffin-like pillars make up this controversial Holocaust memorial.

A narrow passage next to a cafe leads to a courtyard exploding with murals, tags, and paste-ups.

A surreal museum of extraordinary industrial objects.

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

A slice of central Asia in the middle of Berlin.

This towering statue of Jesus provided internet to the surrounding area.

An impressive monument to Poland's independence.

These plaques found across Warsaw commemorate the sites where executions or battles took place during the German occupation.

A heavily politicized roundabout discussing the state of a heavily politicized country.

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

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

Special benches that play Chopin's music are scattered throughout his native city.

The giant statue and its model solar system honor the native Pole who declared that the Earth revolves around the Sun.

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.

The world’s narrowest house makes for an awkward, four-foot-wide living space.

Warsaw's fantastically preserved gasworks...almost.

The world's first invisible city square is an homage to a man who pushed the boundaries of art.

Where a Japanese government official issued transit visas to Jews fleeing from Nazi-occupied Poland.

This magnificent Art Deco church is a reflection of Lithuania’s turbulent history.

Museum deep in the catacombs of St. Michael the Archangel Church is explored by touch, sound, and smell.

Rub it for a bit of good luck.

A 15-foot-tall statue of the head of the Sopranos family greets passengers at a train station in southeastern Lithuania.