Polish luminaries and masterful folk art find sanctuary in this unique cemetery.

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

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

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

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

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

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

A tribute to the Polish insurgents who fought in the failed attempt to end their city's Nazi occupation.

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

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

Naturally formed rock city in Poland.

Warsaw's fantastically preserved gasworks...almost.

The unsettling remnants of a torn down movie set lies nearby the ruined location of the actual Płaszów Labor Camp.

The site of the first battle of World War II.

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.

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

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.

A hidden art gallery in an abandoned Warsaw fort.