The strange phenomenon causing gravity to "work backwards" on this hill has been blamed on the paranormal.

Oregon's unexpected high desert, displaying layers of time in a colorful show.

The only Native American museum along the Oregon Trail, run by the peoples who have lived on the land for generations.

One of the most remote spots in America and the first protected wilderness area in Nevada, named after an old legend.

This Puget Sound military post has a long, turbulent history as a gateway to the Pacific.

A hidden treasure of an abandoned city lies deep in the jungles of Campeche, Mexico.

Equal parts record-breaking temple to consumerism and bizarre fun park, it's more than you think it is...

When you can afford only half a road, you build only half a road.

Town not known for anything except its strange name.

In one of America’s oldest mountain ranges, a long-awaited section of a scenic highway is now open to the public.

One of the few surviving "Wigwam"-themed motels.

This isn't your average roadway—it's actually a National Park and a transportation pioneer.

Soldiers were buried next to Lee's house in the center of Arlington Cemetery to dissuade the general from reclaiming his property after the war.

One day a year it is legal to jump off of this astoundingly tall bridge that spans an Appalachian gorge.

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

The design of this historic domed church was influenced by Thomas Jefferson and intended as a statement of religious freedom.

The "possessed" house that inspired "The Haunting in Connecticut" book and movie.

Holding multiple historical boats and an entire 19th century village, this New England attraction is the largest maritime museum in the world.

Featuring the the longest lift span of any vertical-lift bridge in the world.

This narrow canyon has been carved by the river over thousands of years into spectacular and curious forms.

The world's largest rotating world.

Sports history, made in the Arroyo Seco.

A century and a half of research in the sciences and natural history, still going strong.

The blinking light atop the iconic landmark has been sending secret messages for decades.