This remote camping site offers incredible stargazing opportunities.

Thanks to a quirk of elevation this gift shop produces magic doughnuts that are found nowhere else on Earth.

One of the few remaining indigenous petroglyph sites in Nevada.

Many believe these images represent interstellar lifeforms.

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

Former laboratory of radical psychiatrist Wilhelm Reich.

It's safe—and permitted—to walk across these twin natural sandstone arches.

The highest concentration of petroglyph sites in Gold Butte National Monument, plus an improbable early 20th-century dam.

Multiple waterfalls and several historic CCC buildings anchor this state park in Oregon's Willamette Valley.

An ancient Phoenician citadel once stood at the site where Queen Dido first landed, according to legend.

A tribute to a Ukrainian heroine who went undercover and killed several Nazi operatives.

The ruins of the northernmost pueblo in the Americas tell the story of a mixing of native cultures.

A blend of art, antiquities, and Americana fill this museum, surrounded by whimsical, enchanting gardens.

A 300-yard long natural tunnel runs through a ridge deep in the Appalachian Mountains.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

Franciscan monks created a facsimile of the Holy Land for North Americans who couldn’t afford the trip overseas.

This beloved Baltimore spot features caged dolls, a giant Pez collection, and many, many mannequins.

Eighteen miniature death-scene dioramas.

A former sanitarium where soldiers were sent to recover in the healing waters of hot springs.

This underground cave located in the most barren reaches of Idaho is filled with ice year-round.

This set of hot springs also comes with fantastic views.

A petroglyph map of the upper Snake River carved by prehistoric hunter-gatherers.

During the solar phenomenon "Lahaina Noon" this bendy, curvy sculpture forms a perfectly circular shadow on the ground.

A massive underwater sinkhole made famous by Jacques Cousteau.