The final resting place of the businessman-turned-astronomer who helped discover Pluto stands near his observatory.

This Arizona observatory is famous for investigations into Martian life, and as the place humans first spotted Pluto.

A classic Route 66 landmark that was built with scrap lumber and is held together with kitsch and puns.

A spiritual vortex among the red rocks in Sedona.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

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

A towering tribute to decisiveness stands on the spot where Brigham Young and his followers decided that this must be the place.

A stoic rock cairn is all that remains to remember one of the more brutal instances of frontier treachery in American history.

Visitors to this library are in for a real-world education in modernist architecture.

Despite sitting firmly in the global cradle of the Church of Jesus Christ of Latter-day Saints, this Hare Krishna temple is host to one of the largest color festivals outside India.

An earthwork sculpture built by Robert Smithson in the Great Salt Lake only reemerges during drought.

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

The arch that celebrated the completion of the Lincoln and Victory highways.

This beloved roadside attraction welcomes visitors with his signature neon smile.

A homage to the King at the hotel where he revived his career.

An errant donkey ushered in a new era of mining in Nevada.

Get a taste of the Wild West and a glimpse into the gold rush in Goldfield's oldest continually-running business.

Las Vegas's very own 40-foot-tall fire-spewing praying mantis.

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

A Nevada mining boomtown that ran out of silver and luck.

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

An enormous illuminated figure dances on the Las Vegas strip.

In the middle of a remote desert town is a surprisingly opulent hotel.

An overlooked monument to the celebrity gangster who helped put the sin in Sin City.