Terrifically morbid cemetary and site of famous Paracelsus' grave.

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

The final resting place for the remains of 143 Habsburg royalty.

The topiary maze at the Habsburg hunting lodge.

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

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

A patriotic medieval knight in driven-nail armor raised money for widows and orphans of WWI.

A mechanical clock built in 1914, with a rotation of 12 historical figures on its face.

The crypt of the imposing Stephensdom holds royal intestines and thousands of skeletons.

Museum devoted to the artificial language of Esperanto.

Handsomely crafted representations of our round planet.

The beautiful baroque library of the Hapsburg empire.

A tropical paradise just a short trip from the opera house is filled with beautiful winged creatures.

Dine amidst exotic plants at this former royal greenhouse.

Designed as a reminder of one of the darkest moments in Austrian history.

The townhouse where the "Blood Countess" Elizabeth Báthory started her murderous career.

A monument dedicated to a lone, brave invader.

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

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

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

Royals, rebels, and artists have all conversed at this grand 19th-century Viennese coffee house.

Visiting this café is like visiting the Austrian grandma you wish you had.

Built to give thanks for the passing of a plague epidemic, this cathedral is a one-of-a-kind architectural hybrid.

Along the edge of this fountain are 365 smaller fountains that represent the days of the year.