Spectacular volcanic cliffs along the Crooked River invite hiking, rock climbing, and photography.

This rustic old building is said to be the most photographed barn in America.

No Gordon Lightfoot song, only a barebones monument to greed.

A beautiful geyser under environmental threat.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

An architect's childhood fantasy treehouse made real.

Home to the deepest rift anywhere on Earth.

Supposedly Satanic numbers adorn this preserved submarine sail.

The only bridge in the United States where BASE jumping is legal without a permit year-round.

Where the famed daredevil attempted to launch himself across a canyon in a custom-built rocket.

These falls, sometimes called the "Niagara of the West," still put on a good show at the right time of year.

This pristine World War II airfield gives a comprehensive look at atomic development and aviation history.

Come for the speed, leave in love with the desert.

This former mining railroad is one of the best-preserved short lines in North America.

These huge stone ovens in the desert fueled the Nevada silver boom, and may have also been a hideout for outlaws.

A whimsical, punny collection of "fence art" outside the tiny mountain town of Baker, Nevada.

A gothic palace of endless stalagmites and pseudoscorpions waits within one of the world's most beautiful caves.

Erosion and various mineral deposits give this striking canyon its distinct color and soft appearance.

This roadside stop between Goblin Valley and the Henry Mountains is the perfect location to view some of the region's natural wonders.

Bizarre lunar-like landscape with thousands of large stone "hoodoos."

A striking, menacing sandstone peak towering above a landscape that's equal parts Mordor and the Moon.

A tunnel with windows, so you don't miss out on the impressive views.

The unusual patterns in this rock formation result from two distinct modes of weathering.