Part arcade, part museum, this collection features vintage and modern pinball machines.

A collection of modern and vintage pinball machines housed in the cellar of a 15th-century building.

This stately building in Alexandria, Virginia was built by Freemasons to honor one of their most famous members.

This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.

Thanks to modern navigational tools we now know that the true prime meridian runs through a park next door.

A historic London cemetery now serves as a nature park incorporating gravestones & memorial statues.

A network of concealed passageways lies within a busy London Underground station.

An unusual round church in London with a Templar past.

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.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

A futuristic rocket marks the spot where three borders meet.

A plain wooden seat that once belonged to one of the most prominent figures of the Protestant Reformation.

The world's largest collection of fire-fighting items dating back almost 350 years.

The most impressive of Basel's three remaining city gates.

One of the most historical literary characters continues to stroll his hometown.

Hidden in the garden of physicist Erwin Schrödinger's house is a life-size figure of a cat from his famous thought experiment.

Lucerne's central prison was converted into a tourist hotel with a bare minimum of changes.

Video games, body language, and postal history are all on display in this Swiss museum.

A 200-year-old tavern challenges guests to finish a glass of wine while hanging from a ceiling beam.

A once-thriving hotel in the Swiss Alps couldn't compete with climate change.

A tunnel that brings more than a century of history to life from the deepest parts of the Niagara Gorge.