A marker honors the brief peace found by a tormented artist in the fictional land of Kcymaerxthaere.

The giant metal fruit was once the symbol of a large farm.

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

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

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

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

Warsaw's fantastically preserved gasworks...almost.

A hidden art gallery in an abandoned Warsaw fort.

A stone in Wolin, Poland, marks the possible location of a legendary Viking fortress.

Learn the incredible story of how an unassuming spa town was transformed into one of the world’s largest uranium mining sites.

What was once thought to be a wellspring of unicorn bones is actually just a prehistoric burial site.

A surreal museum of extraordinary industrial objects.

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

An underground city of salt.

If you forgot something to read during your trip to Tokyo, this hostel has you covered.

Naturally formed rock city in Poland.

A larger-than-life statue of the German revolutionist stands proud in a small town where he never lived.

This hidden fortress has been coined the "City of Ghosts."

A museum celebrating the Canadian forces that liberated Belgium from the Nazis replete with battlefield miniatures and multiple Gardens.

This memorial museum chronicles the apocalyptic destruction of the First World War.

A moving memorial to the fallen and missing from WWI trenches.

The site where one of the most famous poems of World War I was composed is preserved to honor the legacy of the work.

Rare wooden escalators lead deep down into an otherwise staggeringly monotonous tiled tunnel.

When you're a great Russian Tsar, even your vomit gets a statue.