The ghostly remains of what was once the world's richest copper mine.

A stoic sculpture that overlooks the waters.

The remains of one of Wales’ great medieval buildings, with a pub in the cellar.

This former Welsh metal factory is now a lovely abandoned relic but was once one of the industry's world leaders.

This tidal island, a sacred site in early English Christianity, was the target of a notable Viking invasion.

A luxury hotel constructed out of a former jail.

Archaeologists believe this panel of petroglyphs depicting descending sheep and other figures in Glen Canyon are 3,000 to 6,000 years old.

Tucked behind New Jersey's abandoned Gingerbread Castle lie the eerie ruins of a once-flourishing paper mill.

What was once believed to be a church floor turned out to be the artwork of geology.

Stroll among dozens of statues depicting pre-Columbian kings, gods, and supernatural beings.

An art installation commemorates journalist Nellie Bly's undercover reporting inside a New York asylum.

It's a repurposed treasure trove of history, located just an hour away from Acadia National Park.

Get a taste of the Wild West and a glimpse into the gold rush in Goldfield's oldest continually-running business.

Eulogizing an unknown man's unusual demise.

Eons old volcanic activity created one of the most stunning rock formations in the United States.

One of the few remaining indigenous petroglyph sites in Nevada.

The self-proclaimed gateway to the Extraterrestrial Highway.

Many believe these images represent interstellar lifeforms.

A remarkably well-preserved brick chimney from a smelter dating to the 1860s is all that remains of this former mill.

A large, remote national monument highlights the typical geologic structure seen in Nevada.

Narrow slot canyons in a badland eroded into soft sedimentary rock provide an otherworldly landscape in this remote Nevada state park.

When it was built in 1929, this historic bridge was the only place to cross the Colorado River for 600 miles.

Giant pinnacles in the sun-scorched lands of Southern Utah have been nicknamed "white ghosts."

This mesmerizing and surreal landscape features intricate patterns of white and red sandstone.