A massive 1830s industrial site once known as Czechia's "Iron Heart" has been transformed into a playground of science, technology, and art.

Tiny communists hammer away on the Olomouc Astronomical Clock.

An ornate plague column – built to celebrate life – claimed the lives of numerous artisans during its construction.

Mummified monks and the accidentally interred, in a 17th-century crypt.

This hanging crocodile is thought to be the "dragon" that once plagued a Czech city.

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.

A cheeky architectural easter egg.

Europe's second largest ossuary wasn't discovered until 2001.

Be(w)ar(e) the moat around this historic Czech castle.

This unusually shaped mountaintop tower looks like a UFO floating over the city.

An unusual bronze bus shelter is actually an art installation commenting on the city's history with the Nazi party.

A small man-controlled waterfall powers an Art Nouveau elevator and is accessed via narrow gauge, solar-powered tramway.

An ornate century-old elevator still connects the two halves of Bad Schandau.

One of the largest busts in the world celebrates the German city's erstwhile namesake.

This giant glowing "beanpole" adds much-needed pops of color to an otherwise drab power plant.

The home of the morbid art of corpse plastination is open for visitors to view the fascinating, but stomach-churning process.

The first (but not only) upside-down house in Germany.

An elevator into the Baltic Sea.

The NASA scientists behind Apollo 11 started out developing Nazi weapons at this abandoned German rocket factory.

This enchanting mountain plateau celebrates spooky local folklore.

A museum in the building where Nazi Germany signed its surrender tells the story of World War II from the Soviet perspective.

The magic's in the hole!

From a neon Rapunzel to a bike traffic meter to a street fair color scheme, the most opened drawbridge in the US is a veritable art gallery.