An abandoned quarrying village turned commune is now a hub for learning the Welsh language.

A sturdy relic of Britain's once crucial gunpowder industry is now a haunting Cornish ruin.

A 168-foot tower, part of the abandoned Chester Leadworks facility.

Isambard Kingdom Brunel, one of the great Victorian engineers, was the driving force behind the short-lived atmospheric railway.

A preserved 18th century steel factory.

This enchanting Victorian estate was home to the world's first hydroelectric power generator.

This historic abandoned train station looks like a stop for ghost trains.

The first tunnel to be dug beneath a river, repurposed as an art and museum space.

The largest of only eight working transporter bridges left in the world.

Happy harbor seals frolic and snooze on this warm, sandy stretch of coast.

The world's largest key collection features keys to the White House, Frankenstein's castle, and Hitler's bunker.

Rather than a run-of-the-mill franchise hotel, this lodging has been decked out in dinosaur decor.

This eclectic collection documents the wild legacies of "America's Wickedest Street."

The interior of the Overlook Hotel in "The Shining" was based on this Yosemite original.

The New York hotel where tragic visionary Nikola Tesla spent his final hours, destitute and alone but for the pigeons.

A haunted hot springs hotel that went from healing retreat to asylum before it was restored.

This chilly Canadian hotel has a four-month lifespan due to the unusual material it's made of.

Every day a troupe of pampered water fowl walk the red carpet to their favorite fountain.

Stay in a room with a view... of the bottom of the ocean.

D.C. once had its own tiny rival to the New York Stock Exchange.

Where the U.S. government kept its actual treasure, before Fort Knox.

Remnants of cells from the most notorious London prison may lie in the basement of a rare Victorian Gin Palace.

Legend has it that President Grant’s frequent drinking in the lobby gave rise to the term “lobbyist.”

The secret cells in the basement of the KGB's Estonian "Grey House" have been preserved as a grim Cold War museum.