Come to this Polish museum to take a good, clean look at filth.

This mysterious and once-grand memorial still embodies a remarkable architectural vision.

One of only two places in the world where two rivers cross each other without the waters mixing.

Legend says this is actually a heartbroken prince waiting for his true love's kiss.

This oddly beautiful water cistern is a techno-temple to the wet stuff and a multimedia masterpiece.

There are thousands of tributes and memorials to the King, but none quite like this one in a Kraków city park.

The traditional Polish croissant, folded 81 times into the shape of a horseshoe, is a legally protected cultural treat.

A peculiar family mausoleum built by a German nobleman captivated by the occult.

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

A 20th-century picture show in 3-D.

Naturally formed rock city in Poland.

A memorial to the beloved brown bear that served in the Polish army during World War II.

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

Warsaw's fantastically preserved gasworks...almost.

A fairytale Gothic castle steeped in Nazi treasure conspiracy theories.

The site of the first battle of World War II.

A program of Communist glamour in post-Stalin Poland is preserved in this colorful museum.

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

An early creation by Erich Mendelsohn.

An old slaughterhouse now holds the largest collection of pig artifacts.

This giant statue of a vulva became internationally famous after an American exchange student got stuck in it.

A striking 12th-century-style castle built on the edge of a cliff.

The great Danube river starts here.

Built to test magnetically levitated elevators, the tower also boasts Germany's highest visitor platform.