This 16th-century building features a flamenco stage on its ground floor and a torture museum on its upper floors.

An underground city of salt.

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

Down this Cracovian street resides a plaque with a stark message about the city's air pollution.

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

Extremely famous in his native country, this Cracovian painter is all but unknown beyond Polish borders.

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

Inside this Krakow church, an explosion of psychedelic color.

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

Krakow's own version of the Hollywood Walk of Fame.

Seven dragon statues—including one that breathes real fire—are scattered throughout the streets of Krakow.

This Polish cave has housed a dragon, a brothel, and an enduring legend.

This ex-prison dates back to the Middle Ages.

A collection of old neon signs from all over Poland line a secluded courtyard.

In the center of Wrocław's old meat market stands a somber tribute to the city's livestock.

It’s a painted window that looks completely real, hiding on a building in the market square.

The silly symbol for an underground protest group is now scattered around the city.

A striking public sculpture representing the period of martial law in Communist Poland.

This hidden collection of everyday objects illustrates life within communist Poland.

A massive mammoth bone has been on display inside this church since the 18th century.

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

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

Catch a scenic view of Warsaw's Old Town from the top of a centuries-old dumping ground.

This bell stars in a tragic love tale and is said to make wishes come true.