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

In the middle of a suburban Denver neighborhood is a cave that once provided solace for a prominent Ute chief and his family.

Legends surround this jagged rock formation in the New Mexico desert.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

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

This spectacular track has run continuously since 1882.

Silver in the hills led to the speedy creation of this boom town and a lack of it saw the town abandoned nearly as quickly.

Despite being one of the most photographed vistas in the Rockies these twin peaks are rightfully known as the "Deadly Bells."

This museum offers an actual time machine back through Colorado's past.

One of the greatest heroes of the Titanic tragedy came from humble beginnings to this beautiful home.

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

A midcentury ranch house hides a literal treasure trove of unique rocks and minerals.

The state's only comprehensive museum dedicated to the mineral that defined its history and economy.

A tiny museum in Esperance, Australia, displays a bunch of space debris from NASA’s Skylab.

The world’s largest combined collection of U.S. and Russian aircraft got its start in a poultry building.

An impressive collection of over 50,000 minerals including moon rock from the Apollo 17 mission.

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

Central City celebrates its most famous madam by racing beds down Main Street.

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

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

Inspired by a music box, a small town Vietnam vet carved an entire carousel full of animals by hand.

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

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

Victorian "Fancy Craft" Hair Wreaths and Relics.