A beach made of semi-precious green sand on the Big Island of Hawai'i.

Try your hand at old-fashioned coffee growing at this museum devoted to one of the world's most coveted beans.

Mark Twain once stopped at this rest station during his journey to Nevada.

An antique Beechcraft airplane serves as a giant windsock for people driving through the blustery open country of eastern Wyoming.

At the time of its completion, it was the tallest dam in the world.

No Gordon Lightfoot song, only a barebones monument to greed.

A small town built on an abandoned airfield has former runways as streets and a bar and grill in an old airplane hangar.

Around half a million years ago, these magnificent columnar basalt cliffs were formed from cooling lava.

The crumbling structure is a rare surviving relic of the area's bygone mining industry.

Creek water that starts here has a 50/50 chance of ending up in the Atlantic or the Pacific.

A miraculous natural phenomenon known as "the spring that breathes."

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

This massive crater in the middle of nowhere was used to train astronauts for moon landings.

An errant donkey ushered in a new era of mining in Nevada.

This massive solar generating facility in the Nevada desert has been plagued by difficulties.

Their motto is, "We've been bonkers for hats even longer than you have!"

Rushing water plunges over a 100-foot drop created by an ancient lava flow at this majestic waterfall.

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

Named after an outlaw who used the basin as a hideout.

A surviving concrete arrow from a 1920s navigational network is preserved right off a modern freeway.

This giant slab of driftwood marks the beginning of the Winnemucca to the Sea Highway.

Many believe these images represent interstellar lifeforms.

One of the few remaining indigenous petroglyph sites in Nevada.

An unexpected sinkhole in a desert flat within Gold Butte National Monument.