A surreal museum of extraordinary industrial objects.

A whimsical and twisted animatronic monster tour beneath the streets of Berlin.

The largest free-standing aquarium in the world resides in a hotel lobby in Berlin.

Fall down the rabbit hole into a surreal journey of human consciousness "from ass to soul."

An eerie, derelict amusement park in Berlin.

This water-tower-turned-high-end-apartment building was once the site of an early Nazi concentration camp.

Art and a pun, all in one.

When German-Iraqi relations broke down, this embassy was vacated post haste.

A state-of-the-art medical facility from the Imperial era is now a derelict ruin.

The site of a concentration camp where inmates were made to take part in one of the largest counterfeiting operations in history is now hauntingly empty.

You would never guess that before World War II this lonely field was a bustling German city.

An impressive monument to Poland's independence.

A narrow strip of land is home to the tallest migrating dunes in Europe.

A sculpture of the iconic East German car on four legs is a tribute to those who traveled to Prague seeking asylum.

A peculiar clock commemorates a historic victory won by ringing the noonday bell an hour early.

A former top secret nuclear fallout shelter now operates like a hotel stuck in the Cold War.

The oldest garden in Prague, once part of an medieval orchard.

A former squatter's paradise outside Prague.

An Orwellian sculpture with eyeball cameras watches passersby.

A bust of Franz Kafka spins in pieces, reflecting the writer's inner torment.

A turn of the century building boasting some of the most beautiful art nouveau architecture in Prague.

This artificial cave looks like something out of a fairytale.

The deepest sinkhole in Central Europe comes with a grisly tale and an unusual nickname: “The Stepmother Abyss.”

This former quarry is now a picturesque gorge that hides a sunken lake.