It takes a nine-mile hike to reach these hot springs, but weary hikers are rewarded with stunning views and a warm soak.

The only remaining Cold War–era Minuteman II missile control center in Missouri.

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

A mining town, now abandoned, was built in a canyon so narrow that the railroad ran right through the hotel lobby.

This deserted Gold Rush town is home to a Masonic lodge that, strangely enough, still holds meetings.

See just what life was like in a 19th-century prospecting town.

All aboard the world's longest miniature railway.

An assortment of armored tanks and Howitzer cannons in the middle of the Sonoran Desert.

Marine fossils from the Devonian period are exposed at this park.

A century-old miner's quarters turned mansion.

A sprawling cave network created by a lone lava tube.

This enormous World War II relic is one of the largest wooden structures in the world.

The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.

What's that on the side of that building? Va Va Voom, it's Bettie!

A huge musical sculpture and other art installations on the National Oceanic and Atmospheric Administration grounds.

Granting the right of way to ships over surface traffic since 1917.

Old submarine parts have been converted into faux whale fins.

This popular bar has been blurring the line between normal and edgy for more than 75 years.

A museum dedicated to the history and exploration of both popular music and science fiction.

A 100-foot metal tower and swinging bridge that provides stunning views of mountains in five states.

Explore a real 19th-century lead and zinc mine at this immersive series of exhibits.

Wander through desolate oil fields littered with rigs.

One of the oldest surviving bars in the United States, located at the site of the last skirmish of the American Revolution.

In 1847, Brigham Young climbed this hill to survey the Salt Lake Valley and saw a fine place to build a city.