Ancestral Puebloan ruins, natural arches, and box canyons abound in this seldom-visited corner of Monument Valley Navajo Tribal Park.

This set of three large, volcanic hot springs is a favorite haunt for intrepid divers.

This secluded aqua waterfall in the Grand Canyon is the perfect swimming hole, and the Havasupai tribe's fiercely protected natural wonder.

One man has installed bathtubs into the Utah desert floor to harness the powers of a natural hot spring.

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.

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

This quiet park's strange sedimentary spires were named after Kodak's color film.

Giant pinnacles in the sun-scorched lands of Southern Utah have been nicknamed "white ghosts."

These mid-century motels once housed the workers who built the Glen Canyon Dam.

Dramatic river bend surrounds a natural red-rocked pedestal.

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

Rippling sand dunes frozen in the Arizona rock.

A small oasis not far from downtown Moab.

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.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

An homage to everyone's favorite prehistoric cartoon family.

The winter home of thousands of beautiful snow geese and sandhill cranes.

A wealth of pop culture statuary and green chile dishes give this roadside restaurant clout.

The highest point in Arizona is an oddly snow-topped peak within the otherwise arid state.

Witnessing the might of this dessert-colored desert waterfall is a rare, powerful treat.

Every year, festive decorations appear on this juniper tree located in the median strip of a busy highway.

A once popular resort—said to be the vacation spot of gangster Al Capone—now remains abandoned in the woods of Arizona.

This oasis-like spring in the Sonoran Desert is home to unique, endangered species.