A cheeky reminder about the value of art dangles above one of Olomouc's busiest streets.

Tiny communists hammer away on the Olomouc Astronomical Clock.

This former atomic bunker is now the Olomouc Institute of Remembrance, telling stories of the communist era.

This almost a century old piece of architecture had been overlooked by most, except for the drunk and the homeless

Once home to artillery, this garden offers more peace today than it did during its war-torn past.

An ornate plague column – built to celebrate life – claimed the lives of numerous artisans during its construction.

Instead of sermons, this church became home to millions of books.

A statue honors the children who fought Nazis in Poland.

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

The final resting place of more than 200,000 people, this is one of the largest cemeteries in Europe.

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

This biographical museum honors the groundbreaking scientist at her birthplace in Warsaw.

In the summer, the area around this sculpture transforms into a vibrant concert venue.

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

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.

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

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

Legend holds that this knife serves as a chilling reminder of the deadly rivalry between two local builder brothers.

Beneath Kraków Old Town's main square lies a hologram-filled medieval market vampire graveyard wonderland.

This wooden mosque is one of the few remnants of medieval Poland's Muslim Tatar community in this deeply Catholic country.

The former Nazi Germany concentration camp stands as a museum to remember this dark chapter in European history.

This sprawling concrete suburb of Kraków was designed by the Soviet Union as the model proletarian city.

An underground city of salt.