Places JonAkzar Wants to Go

This extensive collection covers thousands of years of Polish military history.

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

This open-air museum was originally a World War II testing ground for German missiles and rockets.

This picturesque castle in Poland has a rich history, including a legend that ties it to lost Incan treasures.

In northeastern Poland, the ruins of a massive granary overlook the Narew River.

An abandoned Jewish sanatorium is tucked within the woods of Poland.

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

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

A 90-ton, gravity-defiant steam locomotive shoots for the skies in this bizarrely beautiful public artwork.

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

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

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

This imposing 20th-century castle was abandoned before it was ever completed.

This sprawling concrete suburb of Kraków was designed by the Soviet Union as the model proletarian city.

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

This hidden collection of everyday objects illustrates life within communist Poland.

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

A national collection of Communist-era musical posters.

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

Warsaw's fantastically preserved gasworks...almost.

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

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

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

Beneath Kraków Old Town's main square lies a hologram-filled medieval market vampire graveyard wonderland.