Thousands of turbines whir at at the origin of North American wind power.

This arid landscape was once a lush wetland. Today, it's a paleontological site filled with fossilized mammoths, sabertooth cats, and more.

The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.

An ode to one of the dirtiest jobs during the construction of the Boulder Dam.

A lovely park home with a few interesting guests.

An old railroad grade built for the construction of Hoover Dam is now a recreational trail featuring several tunnels and sweeping views of Lake Mead.

These markers are used to document elevation changes around the famed dam.

A Norwegian-born sculptor created these soaring guardian angels at the entrance to Hoover Dam.

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.

At this gas station in the middle of the desert, a convenience store has been carved directly into the rock.

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

A Mars simulation in the southern Utah desert.

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

This rugged area of red rocks and arches is often considered one of the most beautiful places on Earth.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

An artificial crater field that trained astronauts for lunar exploration.

This historic national park is covered in the stunning ruins of red rock pueblos.

A mysterious spirit totem at the edge of Navajo lands.

A monument to the one-armed geologist who led the first documented expeditions through the Grand Canyon.

This small interfaith chapel lies not far from the rim of the Grand Canyon.

The Grand Canyon’s original airport, which once welcomed pilots like Amelia Earhart and Charles Lindbergh, lies abandoned.

The remnants of a creative early method of wildfire prevention.

The eroded core of an ancient volcano is now accessible by a short hike.