Once a giant gingerbread factory, this space now hosts exhibits and workshops on the historic treat.

A mysterious structure left behind on the Polish mountainside, sometimes called "Hitler's Stonehenge".

A haunting deserted hotel is a favorite with artists and photographers.

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

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

Crosses of all shapes, sizes and colors litter the mountain, the site of a huge yearly Orthodox pilgrimage.

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

An abandoned Nazi explosives plant founded by the inventor of dynamite is now an underground museum.

A huge wooden clock that is so beautiful its creator was forcibly blinded.

Warsaw's fantastically preserved gasworks...almost.

Naturally formed rock city in Poland.

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 uber-quaint Polish village is known for its habit of painting elaborate floral motifs on just about everything.

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

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

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.

A fairytale Gothic castle steeped in Nazi treasure conspiracy theories.

This Nazi ruin was the site where Hitler was almost blown up by a suitcase bomb.

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

An artist's mausoleum with a haunting echo.

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

An underground city of salt.