While most of the games in this arcade take quarters, that would have been a small fortune when they were made.

The spot in the Mile-High City that's exactly 5,280 feet above sea level (at least for now).

The haunted reputation of these abandoned Colorado train tunnels is probably not helped by the terrifying spiked fence.

One of the greatest heroes of the Titanic tragedy came from humble beginnings to this beautiful home.

This super steep hike ascends 2,000 feet in less than a mile.

These faux-cliff dwellings allow visitors to climb around on a replica archaeological site.

Thanks to a quirk of elevation this gift shop produces magic doughnuts that are found nowhere else on Earth.

When ecosystems collide in the arid Southwest.

The highest bridge in America was built for an almost unnervingly small amount of money.

Hidden beneath a bridge, this waterfall is known for the large amounts of graffiti painted on its base.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

At this Denver landmark, the meals are compulsory, the sopapillas are complimentary, and the insanity is everywhere.

Crystal clear lake with a shoreline of travertine located in a Colorado canyon.

Remarkably realistic Florida shoal bass "swim" inside this large globoid sculpture.

Disney's abandoned animal island is now an overgrown ruin that was almost the coolest attraction ever.

The celebrated eyesore created by starry-eyed sweethearts.

This demon atop the Notre-Dame de Paris looks utterly bored.

This life-size replica of the Statue of Liberty's flame is also a tribute to Princess Diana by default.

Original cabaret handbills, posters, and feline artwork are a purrfect highlight of the Museum of Montmartre.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.