Toxic waste disaster that founded the Superfund program.

A natural gas leak provides a flickering flame beneath a waterfall.

The only United States mine for magnesium carbonate has been operating continuously since the 1930s.

Under the right conditions, rocks will move across this dry lakebed, leaving trails behind them.

This dry lake bed contains the oldest known petroglyphs in North America.

A hidden gem of a saloon in the middle of a ghost town.

Rich red almandine gemstones are waiting inside the volcanic rock strewn across this eastern Nevada hillside.

Officially named the "Loneliest Road in America," this barren stretch of Nevada road offers almost nothing but sky and open fields.

Twelve plaster figures inspired by da Vinci's famed painting haunt the desert landscape above a real-life ghost town.

The longest living non-clonal organisms on Earth.

A labor of love built by local hang-gliding enthusiasts, this ideal launch spot was outlawed by the authorities and has since been largely abandoned.

This advertisement for talcum powder was painted on the rock face and has since defied removal.

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

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

An isolated island home to one of the oldest English-speaking communities in the region and Maryland's state dessert.

Captain John Smith thought these cliffs were amazing in 1608 but sharks thought so 20 million years before him.

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

Catch two 18-foot-tall ranchers mid-brawl as you drive by on Highway 285.

This 47-foot chile pepper sculpture welcomes Scoville heat unit obsessed tourists to the Big Chile Inn.

The remains of Abó, Gran Quivera, and Qurai are monuments to the long, complicated history of the Indigenous people of the Southwest.

This popular pitstop lives up to its name.

A blacklight journey through a celestial art exhibit.

The official atomic museum of the United States explores the explosive and productive history of a much maligned energy source.

These ruins of a pre-Columbian cliff village are among the most beautiful and well preserved in New Mexico.