This Chinese-style quartz sundial was saved in its final hour.

The clock that sets them all.

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

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

Gleaming self-built castle towers made from beer cans and inspired by "Vitamin Mary Jane."

When ecosystems collide in the arid Southwest.

Once a mortuary that held the remains of Buffalo Bill, this Denver hotspot is now a death-fixated restaurant.

This historic, one-acre island is the only legal place to camp in the city of Richmond.

A genuine Tudor manor transported piece by piece from England.

Where scientists keep miles of very valuable ice from Antarctica and Greenland from melting.

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

This modern antique shop is a museum for 1980's Saturday morning cartoon culture.

This hot dog-shaped diner has moved all around Colorado, never been to New York.

A futuristic hovertrain is parked unceremoniously alongside a nondescript road.

This historic stone barn is the former home of legendary cattleman Charles “Lonesome Dove” Goodnight.

Wondrous sandstone hoodoos where Native Americans collected clay for pottery, 9,000 years ago.

This naturally-sourced hot spring is now home to a clothing-optional resort.

The site of the "Bone Wars" between two rival paleontologists during the dinosaur rush of the 19th century.

Air Force Academy Chapel made of 100 identical tetrahedrons works to inspire those of all religions.

A lively annual event in which thousands of people race to push coffins heavy with bodies up a hill.

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

This grand stone tower was dedicated to a famed American humorist almost by coincidence.

This Boeing KC-97 tanker is now a restaurant for aviation lovers.

This labyrinthine resting place of Black American leaders has been reclaimed by nature.