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

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

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

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

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

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

Op-art architecture designed for happiness.

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

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

Stone carvings celebrate the legacy of a now-defunct theatre.

5,000 years of East and Southeast Asian art in the heart of Bath.

An obsolete, long-forgotten advertising character lingers on this Sainsbury’s balcony railings.

Built for herding sheep, these tiny winding lanes with medieval origins and distinctive series of narrow turns are charming walkways for humans today.

Over several decades, one of London’s most iconic city gates was dismantled, moved out of the city, and then moved back.

These former ticket office windows in London's underground now house pocket-size parks.

This tribute to the fictional detective stands at the famous literary character's address.

A cornucopia of gargoyles adorns the oldest portion of Oxford’s Magdalen College.

The accidental discovery of this gilt bronze head led archaeologists to find the Roman Baths in the city of Bath

This slice of 1960s Danish modernism does not conform to the Oxford college stereotypes.

A letterbox installed specifically for the first editor of the Oxford English Dictionary.

A little piece of Oxford's overlooked industrial heritage.

This cathedral's stained-glass patchwork of psychedelic colors and shapes was put in place long before the swinging 60s.

Named after a lodging site that existed nearby, a bridge has existed at this location since 1455.

In addition to escorting prospective couples to and from ballrooms, this lane was also a place for gentlemen to settle scores.