This high point in the Great Smoky Mountains is said to be home to the chief of all bears.

Gnarled canopies of pink and purple wildflowers arch over the trail to the summit.

Who needs fancy modern water slides when this giant North Carolina rock works just as well?

A former Oz-themed attraction that has fallen into disrepair, but still holds some of the original magic.

The enormous 250-room Vanderbilt mansion conceals hidden doors and secret passageways.

A collection of unique outdoor sculptures surounded by the beauty of nature.

One of many reminders of Tesla's scientific contributions overlooks the falls which inspired him.

Ruins of a once-prized railroad station in New York.

A historic recreation of the golden age of the Erie Canal, abandoned for some time, slowly being restored.

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.