The ornate structure is part of a building boasting more marble than the Vatican.

The world's oldest surviving music hall was also once a freakshow.

A set of outdoor stairs named in honor of a famous Austrian artist.

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

In the middle of a Vienna square, Roman ruins dating back some 2,000 years are on display.

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

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

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

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.

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

A rooftop restaurant hides in plain sight atop Vienna's Palace of Justice.

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

Inside the corridors of this flea market, visitors are sure to find some obscure and odd treasures.

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

Op-art architecture designed for happiness.

The former private quarters and office of Dr. Sigmund Freud now hosts a museum housing the works of the founding father of psychoanalysis.

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

Amidst medieval and baroque buildings, five human-sized gherkins stand tall.

The beautiful, ornate weather station is the most popular geocache in Salzburg.

This strange statue features a bust of the famous composer plopped atop a woman's body.

Epicurean and holy traditions converge in what may be the oldest restaurant in Europe.

This 19th century cyclorama acts like an analogue time machine to a different era.

Mozart's skull may be held in this collection, but definitive proof continues to elude scientists.