The oldest operating cemetery in Denver is the eternal home of some of the Centennial State's most famous residents.

Final resting place of a 19th century gold prospector and convicted cannibal.

The largest dinosaur trackway in North America is tucked away among this canyon's ghosts and archaeological gems.

When zealous marijuana enthusiasts kept stealing the "Mile 420" highway marker, the State of Colorado got creative.

The final resting place of American icon Buffalo Bill, and a museum that aids in telling his tale.

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

The superstar of Cold War nuclear bunkers has been featured in countless films but is now barely operational.

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

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

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

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

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

One of the few remaining ancient aqueducts described by Frontinus as 'the most solemn testimony of the Empire.'

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

Over two centuries old and counting, Madrid's massive botanical garden contains one of Europe's only desert environments.

The oldest restaurant in the world is this old-world Spanish eatery, still known for its suckling pig.

A Spanish town built into the cliffs.

The highest peak in mainland Spain is said to be the final resting place of a Muslim king.

The world's most elegant power lines.

The earliest known map to show America, discovered by accident at a Paris bookshop.

An ancient Egyptian temple in the middle of Madrid, Spain.

Two monstrous faces loom over a village in Czechia.

A horse statue that receives constant makeovers from graffiti artists and locals.

A copy of the Statue of Liberty greets visitors to the birthplace of Auguste Bartholdi.