An Aladdin's cave of old Silicon Valley tech.

The awe-inspiring ship from the golden era of cruising has an incomparable history and a reputation as one of the world’s most haunted places.

A sign at the end of the Santa Monica Pier marks the traditional end of the legendary American highway.

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

Quite simply the largest tree in the world (by volume).

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

The massive, incredibly rare instrument is over 11 feet tall with a range so deep it goes lower than humans can hear.

In a 345-million-year-old cave that's 200 feet underground, dinner awaits.

See massive fossils that are over 200 million years old in northeastern Arizona.

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

Dramatic river bend surrounds a natural red-rocked pedestal.

Jurassic Park—A Still Life.

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

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

The first declared National Monument in the United States.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

When waves crash onto this section of beach, the rocks sing a song.

What appears to be a wizard's lair in Milwaukee actually houses a massive water pipe.

This unusually circular centenarian barn became a Route 66 icon.

The fifth tallest statue in the United States is a shirtless monument to the oil worker.

Very likely the only museum in the world that celebrates the glory of the humble banjo.