This narrow coastline trail through the dense Kauai wilderness is among the most beautiful and dangerous in the world.

Submerged lava formations create incredible waterworks.

This former luxury resort in Kaua'i is now an abandoned relic.

This blowhole is supposedly caused by a trapped monster.

This industrial area was the dumping ground for massive amounts of trash, some of which washes up as tiny bits of sea glass.

The secret city built by the Manhattan Project.

This museum started as a collection of Manhattan Projects and continues to add exhibits as they are declassified.

Once a dining hall for boarding school students, this lodge was a popular haunt for nuclear physicists working on the Manhattan Project.

A small metropolis of Pueblo cave dwellings have been carved right into the hillside of this national monument.

Twice a year, visitors can tour the desolate site that birthed the Atomic Age.

A museum dedicated to the alleged Roswell Incident.

Home of the International Space Hall of Fame.

This quirky hot springs town known to locals as "T or C" was named after a radio show.

A wealth of pop culture statuary and green chile dishes give this roadside restaurant clout.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

Wee (and not so wee) footprints that insects and reptiles of the Paleozoic Era left behind.

Bad farming practices caused this unnatural natural wonder.

A wealth of local folk art, antiques, and curios, without ever leaving your car.

A graveyard of bathyspheres and diving bells paints a weirdly accurate account of ocean exploration's rickety history.

Of course the guy with the first patent for an ice machine lived in Florida.