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.

Experience a charming 1930s version of "infotainment."

One of the world's tallest Ferris wheels takes visitors high above Las Vegas in a spinning party room.

Flashy signs from Las Vegas’s past find their final resting place at this unusual graveyard.

The oldest standing building in Las Vegas was established by Mormon settlers.

This small town was built around a marble quarry and named after one of the most famous sources of marble in the world.

This school building was an extravagant show of wealth for a boomtown that mostly faded in the following decade.

This once bustling boomtown hotel is now the hottest spot in Nevada for ghost hunters.

A small research station sits at the summit of this mountain, which is one of the few U.S. peaks higher than 14,000 feet outside of the Sierra Nevada.

The highest point in Nevada had to be decided by court order after California tried to claim it as their own.

A relic of the region's once booming timber industry.

A volcanic cone that formed over 600 years ago.

The first lookout in Yosemite.

The longest burning light bulb in the world.

It should come as no surprise that the world's largest artichoke lies in the town that calls itself the "Artichoke Center of the World."

One of the ghostly stops along Route 66.

A tribute to the statues of Easter Island along Route 66.

Don't blink or you'll miss it.

The remains of a boarding school designed to forcibly assimilate Native American children.

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

A fantastic resource for information on both Route 66 and the local area.

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.