This ancient Hindu temple is covered in thousands of colorful statues and has a long mythological history.

A blooming house of worship for the masses.

This peaceful Sikh gurudwara serves around 50,000 free meals every day within its gilded walls.

The original burial place of this preeminent 18th-century Jewish philosopher was razed by the Nazis.

A dilapidated space station with overtones of 'Alien' and 'Bladerunner' featuring a multiplayer games galore.

A monument to the three wars that led to German unification towers within a Berlin traffic circle.

Germany's Glienicke Bridge has a shady history of clandestine meetings, espionage, and spycraft.

This little museum is making sure that the art and history of the graffiti sticker is not scraped from history.

Visitors can explore the role of mysticism throughout the ages inside this interactive museum of magic.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

A narrow passage next to a cafe leads to a courtyard exploding with murals, tags, and paste-ups.

A slice of central Asia in the middle of Berlin.

A tour of underground Berlin takes you through WWII air raid shelters and tunnels used to smuggle people out of East Germany.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

Taxidermied animals galore, by appointment only.

This long-hidden space above Westminster Abbey now displays the battle gear of the legendary King Henry V.

Pop culture has helped to keep this iconic British building from being destroyed.

A hands-off space for graffiti artists to hone and display their skills.

One part local history, 99 parts gruesome haunted house.

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

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

This collection of illusory paraphernalia has been culled from the history of London's premier magician's club.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

A kaleidoscopic warehouse-maze of handmade neon signs.