A monument to the egos of two railroad magnates that fell into decline along with their careers.

The first declared National Monument in the United States.

The only retired U.S. nuclear missile silo that is open to the public.

Creek water that starts here has a 50/50 chance of ending up in the Atlantic or the Pacific.

The high point on the 16th president's eponymous roadway is marked by a massive version of his head.

This UFO landing strip was created by a charitable Wyoming city that was worried about residents of Jupiter.

A small Wyoming town is home to the state's oldest-operating soda fountain.

Dance on a hand-hewn log floor padded with bouncy boxcar springs at a saloon built in 1883.

It is the only marker for one of the most famous hate crimes in American history. There are no other memorials for him in the entire state.

One man's ambition created this psychedelic log home.

A local museum remembers one of the worst acts of anti-Chinese violence in American history.

Long before guestbooks and hotels, frontier travelers signed their names on this rock face.

An unusual geological feature towers over the remains of a dark episode in United States history.

At the time of its completion, it was the tallest dam in the world.

Features unique photographic collections by women of the American West and historical attractions such as a two-story outhouse.

This rural museum highlights Wyoming's era of trapping and fur trades, and hosts the annual Green River Rendezvous in July.

This remote river crossing was a popular campground on American westward expansion trails, and a former Pony Express station.

Native Americans built this circle of stones, which was used to predict astronomical events.

This sandstone building is a relic of the Overland Trail.

The rockpile was the founding landmark for the town of Gillette, and is now the home of the region's history.

Population: 1.

The easiest way to the highest point in Wyoming is only accessible via one hefty fee.

This museum details the history of a local miracle: The return of the critically endangered black-footed ferret, which was once believed to be extinct.

A century-old cabin off of Highway 30 touts an unusual construction material: dinosaur bones.