Ruins of a late 1950s Polish ski jump ramp in the middle of the city.

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

In the midst of a living monument to Soviet social engineering, Polish Catholics built this church by hand.

These massive moving sand dunes have swallowed an entire village and are still on the run.

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

Warsaw's fantastically preserved gasworks...almost.

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.

One of the largest amphitheaters in Europe is a former Nazi gathering place that still stands today.

Memorial to the lost dead of Gdansk, whose resting places were destroyed during World War II.

A statue honors the children who fought Nazis in Poland.

This antique thermometer honors the creator of the first universal temperature scale.

What was once an underground Nazi city is now Europe's largest bat reserve.

A World War II torpedo launch station abandoned off the Polish coast.

This tower in a small Polish village uses the power of a sacred bell to ward off mischievous weather spirits.

Boats must transform into railroad cars to navigate this Polish canal.

A national collection of Communist-era musical posters.

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.

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