Pizza with a side of fine art.

Nonprofit art center that promotes outsider, intuitive, and self-taught art.

A lush green oasis in the middle of Chicago.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

The fifth-longest natural arch in the world, and the longest outside China.

A mental health hospital dating back more than 139 years, now features a museum.

At the tallest peak in Colorado, an electrifying mix of thin air, lightning, and rivalry.

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

Paleoamericans built these ancient walls high in the Colorado Rockies as part of an extensive hunting system.

This underfoot portrait is the work of a disgruntled painter inspired by a tragic poem.

Neal Cassady may still have an open tab at one of Denver's oldest watering holes.

While comics are the main attraction at this megastore, the second floor plays host to an exhibit fit for a museum.

A collection of over 15,000 zines works to preserve DIY publishing culture.

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

Once part of a dam servicing an early 19th century grist mill, the tucked-way falls are a tricky-to-find urban oasis.

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

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

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

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

The largest self-built castle in the U.S., six decades in the making.

A Spiritualist house of worship where believers communicate with the dead in the spirit world.

At 207 feet, one of the world's longest continuous escalators.

The home of pigs, snakes, chameleons, and the alleged largest bunny in the United States.

Lines from a walking song are etched into a rock in Natural Bridge State Park.