The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.

Why have you never heard of the second most popular tourist site in New York?

Discovered by cows, these upstate New York show caves are presented with a healthy dose of psychedelic folk art.

The schoolhouse where Jesse Merwin, the inspiration for the "The Legend of Sleepy Hollow" character, once taught.

A 13,000-year-old mastodon skeleton was found during the construction of a 19th-century New York mill.

The original Uncle Sam was actually a New York meatpacker who is buried under this historic grave.

The first American home of the isolated, egalitarian religion has a trove of Shaker architecture and artifacts.

This giant monument of the RCA mascot is a beloved fixture in Albany, New York.

A kaleidoscopic warehouse-maze of handmade neon signs.

Collection dedicated to brands, packaging and advertising.

After nearly 60 years, there's still a bear at Paddington Station looking for help.

Putting the "mod" in "modular" since 2000.

This unique bridge curls up like a caterpillar to let boats pass and then unfurls again to span a small canal.

This hidden rooftop garden in downtown London offers a quiet respite from a bustling city.

Taxidermied animals galore, by appointment only.

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

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

A flourishing garden with pigs, donkeys, goats, rabbits, guinea pigs, chickens, ducks, and sheep.

A museum wholly devoted to juvenescence.

The curios of pharmacist and collector Henry Wellcome.

Explore nearly 400 years of English middle-class home life.

A special shop catering to the needs of things that go bump in the night, and also helps kids become writers.

The Columbia Road Flower Market is now open every Sunday, rain or shine.

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