Inside this curiosity shop, visitors can peruse the clown collection or purchase a molar from the mouth of Bigfoot.

The longest and widest floating bridge in the world.

A sun-filled museum featuring an ever-rotating collection of classic and exotic cars.

This amazingly preserved Gold Rush town is a historian's dream.

The tiny church offers succor to travelers driving by, but only eight at a time.

The illuminated falls are a gem in North Cascades National Park.

This long, dark tunnel is open to hikers, but those without lights are known to get confused even on the straight path.

This impressively large collection includes crackers shaped like Jimmy Carter, Mickey Mouse, and more.

Nuclear reactor created the plutonium used on Nagasaki.

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

After this former brothel closed, its interior remained almost frozen in time.

It was once used as a classroom to teach mining skills to local high school students.

A giant milk bottle from the 1930s beckons drivers to this diner.

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

Visitors to this public park will also find the ruins of an old western fort.

The remains of this rugged homestead ranch offer a brief glimpse into a bygone era.

This collection of vintage signs reflects the long and colorful history of this Arizona town.

This Big Sur waterfall drops 80 feet directly into the Pacific Ocean, and inspired the hillside house up top.

The ruins of Theodore Roosevelt's beloved ranch stand in a forgotten corner of a national park named after him.

A legal loophole makes it possible to get away with murder within this 50-square-mile section of Yellowstone.

This gorgeous beach hides behind two headlands in Oregon's Ecola State Park.

The first park built over a freeway is a brutalist masterwork.

This former coal gasification plant found a curious second life as a popular public park.

Four abandoned towers hidden above the Douglas fir forest in Washington.