The housing complex served as an anti-fascist fortress during the Austrian Civil War.

Vienna's diversity-themed traffic lights were inspired by the Eurovision Song Contest.

Resting in the middle of an Austrian river, this sci-fi "island" lets people cross in neon style.

A neo-Gothic church built to thank God for saving the Emperor of Austria from an assassination.

Apartment complexes built into huge repurposed natural gas tanks.

Giant WWII fortresses that fired 8,000 rounds a minute, now home to thousands of pigeons.

An exquisite Baroque church in Vienna's old town.

A silly medieval mural preserved on the side of a Viennese house.

Legends surround an ancient tree trunk riddled with nails for good luck.

Baroque celebration of the end of the Great Plague of Vienna.

This cubist Vienna church building looks like some sort of alien stonehenge.

The resting place for anonymous victims of the Danube's dark waters.

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

Annual technopop celebration of peace and love.

A magnificent collection of imperial armor and weaponry.

An ornate private entrance to the Vienna subway built specifically for the emperor.

This grand manse has been transformed into a museum devoted to one of the founders of Fantastic Realism.

On a winding Vienna side street, one museum has turned their windows into a monument to history’s peace-minded heroes.

This series of Baroque passageways in Vienna's cultural center mix old architecture with modern art.

The solemn exterior conceals an opulent interior of this 17th century church.

A neo-Gothic mansion now houses a wunderkammer of analog tech that hits on all the senses.

Vienna's giant wonder wheel had a starring role in one of the greatest noir movies of all time.

Dine amidst exotic plants at this former royal greenhouse.

Beautiful Austrian natural history museum with carved ceilings and row after row of ancient taxidermy.