A coal fire has been burning underground here since 1896.

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

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

The world's largest sticker ball weighs in at a mighty 231 pounds.

It's easy to forget what century it is as you wander this rustic homestead.

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

An eclectic collection of artifacts from the Wild West is preserved in a remote fictional pioneer town.

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

A stark reminder of the huge nuclear weapons plant that once stood on the site and its effect on the surrounding area.

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

Metal water storage tank turned ethereal concert hall.

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

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

This was once the home of Gahan's Saloon, Denver's most storied speakeasy.

A river runs through this remote valley in a very unexpected way.

Hidden beyond a kitschy giant beetle is this remarkably sprawling collection of preserved insects.

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.

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

A research lab and hands-on museum where visitors can experiment with retro technology.

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

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

There are eight natural springs around town, each with a slightly different taste.

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