The tech giant built three enormous glass orbs in Seattle so employees could work inside a rainforest greenhouse.

This grand old 80-foot sequoia towers above the buildings in the city’s retail center.

The first park built over a freeway is a brutalist masterwork.

A wall of chewing gum moonlights as collective art.

This grove of ghostly cedars was killed in 1700 by an enormous tsunami, felt from the United States to Japan.

A classic Route 66 landmark that was built with scrap lumber and is held together with kitsch and puns.

Once the product of an inexplicable gold strike, this ghost town is now home to one man and his love of classic machines.

On the outskirts of a reborn ghost town, a decaying post office remembers the bad old days.

A Wild West jailhouse that slid down the mountainside.

A series of labyrinths in the Nevada desert inspire meditation and calmness.

The show pony of cave systems, Fantastic Caverns manages to live up to its name.

See six states from the newly restored 100-year-old historic roadside attraction.

Home of mutant livestock.

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

Massive still life just off the highway in Kansas.

A whimsical monument marks the highest point in Kansas, not that you could tell by the looks of it.

A fitting attraction for the corn capital of the world.

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

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.

A Nevada mining boomtown that ran out of silver and luck.

This railroad magnate's 19th century tower is more than a little bit out of place in the Nevada desert.

Local history museum with mammoth bones and an old myth about local giants

Established in 1853, this crumbling cemetery sits forgotten on the corner of Church and Chapel in Gold Country.