A prehistoric rock shelter that's literally in someone's backyard.

A reproduction of earth's many biomes.

This southwest-styled home in Santa Fe claims to be the oldest house in America thanks to an ancient bit of foundation.

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

An abandoned sawmill from more than 134 years ago stands testament to the ambition of one man.

Travel through the wholesome amusements of yesteryear at this charming miniature village.

The final resting spot of the Colorado Transportation Department's beloved unofficial mascot.

One man's love for East Coast diner culture brought an entire eatery all the way from New Jersey to Colorado.

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

A downtown park built on top of unclaimed graves.

The world's largest carnivore sanctuary is home to over 450 meat-eating rescues.

The burial grounds of a secret society includes fences topped with fake Tesla balls.

This deserted Gold Rush town is home to a Masonic lodge that, strangely enough, still holds meetings.

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

A focal point of in Denver’s skyline for over a century, inspired by a Venetian basilica.

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

An expansive book store, art gallery, and curio shop with wares ranging from tarot cards to novelty socks.

This curiosity shop contains a museum filled with bizarre, unique objects.

An old saloon in the West filled with history, and according to some, a few dozen ghosts.

Elvis's own personal tropical hideaway.

When ecosystems collide in the arid Southwest.

This nearly abandoned town was once a thriving mining community until a series of fires.

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

The moving metal works of one troubled artist can still be viewed on his front lawn... for now.