One of the oldest living oak trees in the Southeast.

A small storefront museum explores the history and myth of West Virginia's famous urban legend.

This red-eyed chrome beast pays homage to the popular modern myth of West Virginia's insectoid monster.

The only remnant of a small mining town is an abandoned railroad tunnel that is steeped in ghostly lore.

America's post-nuclear-attack chambers of Congress.

This island hill is strewn with boulders carved by shipwreck victims from the age of sail.

The somber sculptures commemorating Irish Famine on the river Liffey in Dublin.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

A museum dedicated to the alleged Roswell Incident.

Take a steam-powered ride straight out of the past on this Appalachian rail line.

The world's longest known cave system.

The hotel where Martin Luther King Jr. was shot is now a museum dedicated to his work.

Controversial tribute to the heavyweight champion boxer who grew up in Detroit.

Watch the ships come in on Michigan's 210 ft. high observation deck in Sault Ste. Marie.

World's largest Christmas store.

In Florence's great Duomo, a 26 foot fresco honors a mercenary famous for attacking Florence.

A 220-foot deep watery drop-off, filled with marine life.

This highest peak in New Mexico is named after an explorer who had a habit of lending his moniker to peaks.

A multi-storied adobe complex has been inhabited for more than a thousand years.

Frank Lloyd Wright’s most iconic home dangles over a Pennsylvania waterfall.

The "mysteries" of this quintessential roadside oddity were almost destroyed by neglect but were saved by fans of kitschy wonder.

One day a year it is legal to jump off of this astoundingly tall bridge that spans an Appalachian gorge.

Island where motor vehicles are banned -- home to the only carless highway in the United States.