An attractive alpine lake at 8,400 feet that is accessible via a paved road.

A 90-foot-tall psychedelic "tree" on the side of the highway has baffled passersby for decades.

Come for the speed, leave in love with the desert.

This pristine World War II airfield gives a comprehensive look at atomic development and aviation history.

One of the smallest towns in the United States.

A volcanic core jutting above the plain between the Snake and Boise Rivers, a marker identifies the reference point for all U.S. Government Surveys in Idaho.

One of the "twins" in these falls on the Snake River was sacrificed for hydropower generation in the 1930s.

Birdhouses, peacocks, animal sculptures, and a graveyard are all found along this eclectic nature trail.

Built in 1981 in collaboration with Andy Warhol, this giant piece of pop art stands on the campus of Colorado State University.

This depiction of the earth mother welcomes new life into Aurora Highlands.

A statue high in a hill that represents how Buffalo Bill got his name.

This lesser-known geographic marker was the reference point for all surveys of the continent for 75 years.

Massive still life just off the highway in Kansas.

The only bridge in the United States where BASE jumping is legal without a permit year-round.

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

In Paris, Texas they have their own Eiffel Tower, it just has a cowboy hat on it.

Miraculous tree that seems to sprout out of solid rock.

The oldest hotel in Nevada.

A Wild West saloon that helped define a generation of psychedelic rock.

This Old West eatery along America's Loneliest Road was originally a stop on the Pony Express.

A hidden courtyard houses early 20th-century plaster masterpieces.

Built for an exposition in 1915, these horticultural displays have stood the test of time.

One of the largest trees of its kind in California.

The world's largest outdoor organ is played weekly by one of just two civic organists in the U.S.