The world's longest continuously running show has played at this small West End theater since 1974.

This ancient Egyptian obelisk still bears the wounds of World War I.

A charming 17th-century alley is lined with secondhand bookstores and antiquarian shops.

This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.

This contentious squat has stood through fire, violence, and government intervention as a hotbed of leftist protest.

Model Trains and Much More in Hamburg.

Once the tallest building in the world, this abandoned church is now a monument to the destruction of WWII.

The palace window through which Protestant nobles flung two Catholic regents, thus sparking the Thirty Years' War.

Synagogue built from the stones of Solomon's temple contains the golem of Prague.

Macabre astrological automaton clock dating to the late 1400s.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

The first museum in the world devoted to sexual gadgetry.

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

Op-art architecture designed for happiness.

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

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

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

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

Immortalized by artists, this church incorporates a medieval lighthouse into its shoreside structure.

This plaza is home to a number of works, including Montpellier‘s own Arc de Triomphe.

A crumbling island fortress that seems to be covered in a field of stone crosses but is simply incomplete.

This modern museum of Mediterranean culture is surrounded by a surreal concrete honeycomb.

Ordinary art transforms to extraordinary thanks to locals' quirky sense of humor.

A horde of stray cats rule in this secluded Parisian cemetery under a bridge.