This crumbling Death Valley mining complex was known for its use of giant, 20-mule team wagons.

The lowest point in North America is home to an undrinkable pool surrounded by fields of geometric salt flats.

Millions of years of oxidation make a drive down this winding Death Valley road surprisingly colorful.

A ruined mansion hidden in the woods of the Hudson Valley, home of a tragically doomed romance.

These mysterious ancient stone spheres were created by a civilization lost to time and are now mostly lawn ornaments.

A bomb shelter and some fireplaces are all that remain of the house Fred Roberts tried so hard to keep standing.

This rare triple-jurisdiction drawbridge passes through Virginia, Maryland, and Washington, D.C.

The world's oldest continuously operating airport was founded by the Wright Brothers.

The longest escalator in the Western Hemisphere takes over three minutes to ride down.

This elaborate towering structure was once famed for its revolutionary height.

The oldest of only three existing statues of the great novelist stands in a city he did not care for.

The first American department store, and home to the largest operating musical instrument in the world.

This stone tower marks a lookout point over the historic Washington Crossing, and maybe some buried treasure.

This colonial mansion has been home to a staggering number of American historic figures.

The highest point in the state of New Hampshire, and while unlikely "the worst weather in the world," it sure seems that way to hikers.

A massive sustainable farm designed by the mastermind behind Central Park.

This New England covered bridge is home to the tale of a jilted lover known to haunt the area.

The sweetest graveyard in the world is filled with headstones for dearly de-pinted ice cream flavors.

Oldest existing church in New York and the inspiration for Washington Irving's "The Legend of Sleepy Hollow."

This once-grand marvel of engineering is now 41 miles of scenic hiking trail.

This abandoned ironworks was once the most important military supplier in America.

A once grand hotel is being retaken by the wilderness it once capitalized on.

A priest with no formal artistic training used basic house paint to create gorgeous religious scenes inside this historic church.

This unusual lava tube spouts seawater during high surf.