This raised bulls-eye visible from space was the subject of an intense geologic controversy.

This 15th-century island fortress later served as home to the executioners no one wanted to live near.

Built in 1859, this eagle-topped archway marks the entrance to Brigham Young’s property.

One of the world's oldest and most massive living organisms is a grove of quaking aspens.

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

Although it also features red, orange, and variegated cliffs of Navajo Sandstone, this state park is often overshadowed by its more famous neighbor.

Settled by the Church of Jesus Christ of Latter-day Saints in 1859, this abandoned frontier town has appeared in several films.

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.

Walk through the sets of old western films at this small museum in Utah.

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

A sharp bend in a dramatic river canyon cut through red rocks.

Most-visited and most-photographed slot canyon in the American Southwest.

This magnificent natural sandstone bridge is one of the largest in the world and is an iconic symbol for Lake Powell.

One of the world’s largest collections of petroglyphs records 2,000 years of human activity.

A house carved into a rock in the 1940s.

A small oasis not far from downtown Moab.

This site is home to ancient petroglyphs and pictographs dating back to 6,000 B.C.

Few things look more out of place than the electric blue ponds in the reddish-brown desert of Utah.

The fifth-longest natural arch in the world, and the longest outside China.

Inside this striking glass building, visitors can see thousands of dinosaur fossils in the positions that nature deposited them more than 150 million years ago.

Built for a motel, this cartoon dino is now a symbol of the area's paleontological heritage.

A unique collection of drawings that represent Fremont Native American culture.

A 90-foot-tall psychedelic "tree" on the side of the highway has baffled passersby for decades.