The world's first zoo for microbes collecting the horrible and wonderful things living on and around us.

Established in 1638 to battle the Black Death, Hortus Botanicus Amsterdam is a treasure trove of rare flora.

A curious collection dedicated to human and animal anatomy and pathology.

The final resting place of many of Germany's most famous communists.

Beneath the impressive baroque cathedral that rises from the center of Berlin lies the largest collection of Prussian royals in the world.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

The final resting place of the last "gypsy king" of Poland.

The biggest exposition of dental equipement in Europe. And a Mummy.

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

Dubbed "Wistom" by locals, this abandoned factory is an urban explorer's dream.

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

This 13th century Gothic brick castle is the largest in the world by surface area.

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

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

The final resting place of more than 200,000 people, this is one of the largest cemeteries in Europe.

Poland's oldest salt mine has nearly everything one needs to live underground forever.

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

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

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

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

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.

Thirteen sculptures in central Moscow graphically depicting vices of the modern world.

It's hard to believe the dizzying patterns covering this abandoned mine are completely natural.