These 18th-century paintings of Warsaw were used to reconstruct the city after World War II.

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

This Communist-era residential block is one of the longest residential building in Europe.

The largest toy museum in Poland showcases Europe's history of childhood.

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

These mechanical goats first battled it out in the year 1551, all because of an overcooked deer.

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

This fairytale medieval church in Poland originally spent centuries in Norway.

This fairytale inspired, warped building houses restaurants, shops, and a radio station.

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

Museum dedicated to "the man who moved the Earth."

After the famous composer died in Paris, his sister snuck his heart out of the country to honor his wish that it be buried in their native country.

The site of the first battle of World War II.

Real bones which are said to have belonged to a Polish dragon.

An underground city of salt.

Countless stories attempt to explain Poland's mysterious J-shaped trees.

The walls and ceiling of this Polish church are decorated with thousands of skulls, with another 21,000 skeletons just below.

The world's most active stratovolcano is almost always erupting.

This communist behemoth is the heaviest building in the world and a legacy of a brutal regime.

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

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

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

Cozy basement bar sports an inventory of over 2,000 beers.

Climb inside an iron crystal magnified 165 billion times its normal size.