This simple stone monument honors a 19th-century tragedy.

Four ionic columns from the Treasury Department building ended up in a park in Nebraska.

America's smallest town is run by its single citizen/mayor/librarian/bartender.

A brick-paved former section of the historic coast-to-coast highway.

Other-worldly rock formations and ancient fossils abound in this unique stretch of Nebraska badlands.

Around half a million years ago, these magnificent columnar basalt cliffs were formed from cooling lava.

The only retired U.S. nuclear missile silo that is open to the public.

This mining town boomed in the Atomic Age when uranium was gold, only to be abandoned when the industry collapsed.

Creek water that starts here has a 50/50 chance of ending up in the Atlantic or the Pacific.

This UFO landing strip was created by a charitable Wyoming city that was worried about residents of Jupiter.

A century-old cabin off of Highway 30 touts an unusual construction material: dinosaur bones.

Devilish landscape, once cinema home to giant alien bugs, now derelict roadside attraction.

Native Americans built this circle of stones, which was used to predict astronomical events.

A beautiful geyser under environmental threat.

Three abandoned missile silos are hiding in plain sight behind a suburban development in Maryland.

A star fort along the C&O Canal in western Maryland that protected America in three wars.

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

The land is home to swimming ponies and a legendary 18th-century treasure.

A cave on the Maryland border where civilians took refuge during the bloodiest battle of the Civil War.

An abandoned church gets a second life as a massive beer hall and event space.