Preserving the remains of Native American cultures which otherwise would have been submerged behind Hoover Dam.

The drama of nature in full effect in this Nevada State Park.

The remains of the iconic train crash from the movie The Fugitive can still be found rusting along the Great Smoky Railroad.

The contents of this safe survived a 37-kiloton nuclear bomb.

The largest man-made crater in the U.S. marks the spot where we once tested mining with nukes.

A picture-perfect town, perfect for blowing up.

Stepping away from the glitz of mobsters and casinos to learn about the other history of Vegas.

The only surviving prototype of Buckminster Fuller's revolutionary car.

This museum sits on the site of a decommissioned military communications base.

Electronic inventions that resulted in products and systems we use every day are on display in this labor-of-love museum.

A lawn full of retired spacecraft on display at one of NASA's first research labs.

The antique hotel still has a jail in the basement, though the cockfighting ring is long gone.

This beautiful stone arch bridge wasn't even expected to stand for one day, but people have been crossing it for centuries.

Brain collection and database that narrows the gap between man and animal.

This fort down the Potomac from Washington, D.C. was once the only defensive fort protecting the capital.

Two dozen pinball games hidden away inside a most unlikely location.

A Civil War Museum with some notable medical antiques.

America's first nuclear-powered merchant ship is now a time warp to the atomic age.

Live data is transmitted from the Atlantic coast to instantly recreate the ocean waves in this fountain at the NOAA headquarters.

A haunting exhibit in a wildlife refuge center highlights threatened species and the conservation efforts needed to save them.

Ship skeletons haunt Baltimore's waterways.

This abandoned Victorian-style house was built in 1884.

The shelves in the back of this thrift store are devoted to saving, not selling, retro tech.

The remnants of a wooden-hulled fleet built and abandoned in WWI, now home to a thriving ecosystem.