A hotel with a rich Wild West history of miners and bootleggers.

A seven-story 1920s mausoleum outside Denver houses thousands of remains.

Two creeks flow out of either end of this canyon in opposite directions.

An antique narrow gauge railway line still running through the Colorado and New Mexico mountains.

A roadside attraction filled with an astounding array of gloriously wacky vehicles.

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

Unlike most arches, this geological oddity formed in a volcanic dike.

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

The largest source of fossilized insects anywhere.

Colorado's only true geyser is hidden within the San Juan National Forest.

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

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

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

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

A breathtaking array of ancient Pueblo structures and artifacts counterintuitively preserved by neglect.

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.

A hidden barn-sized rendition of Grant Wood's most famous, and most parodied, painting.

Rather than a run-of-the-mill franchise hotel, this lodging has been decked out in dinosaur decor.

A futuristic temple of light uses prisms and rainbows to create an atmosphere of peace.

Seemingly grown on some other world, these New Mexico rock formations look like a disused science fiction set.

This innocuous New Mexico storefront was once the secret jump-off spot for Manhattan Project scientists.

This national park on the shore of Lake Michigan features remarkable dunes that lie at the heart of a Chippewa legend.

The city is full of whimsical portals to another world.