Austria's ultra-modern art museum looks like Cthulhu's giant alien heart.

Double spiral staircases are not unheard of, but they are very rare.

Increasingly decayed figures stand as a powerful reminder of the human costs of Czech Communism.

Macabre astrological automaton clock dating to the late 1400s.

Steadily reminding Czechia of its past.

Ruins of a German Castle on top of a towering stone pillar.

Trick water gardens from 1619 featuring a 200 piece mechanical theater powered by water.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

A diminutive statue that was inspired by the sculptor's own daughter.

A subterranean house of worship carved right out of the bedrock.

This irregularly shaped sea fortress has defended not one but three different sovereign states.

The big toe of this towering monument to a Croatian national hero is worn from years of superstitious rubbing.

Europe's largest natural bridge has a 19th century royal chateau built into its side.

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.

The medieval institution is home to the precious treasure stolen in World War II in one of the greatest art thefts of the 20th century.

This Dresden church was purposely rebuilt Protestant after being demolished in World War II.

Tourists often confuse this beautifully ornate former cigarette factory for a mosque.

In addition to fine dairy products, the world's most beautiful milk shop also offers a feast for the eyes.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

This curious sculpture represents the perseverance needed to take to the skies.

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

The most visited, and possibly most controversial, museum in Germany.

Cold war icon and onetime "hole" in the iron curtain.