The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

A man-made island in scenic San Francisco Bay.

Golden Gate Park's historic collection of plants.

Chevron maintains one “Standard” brand station per state so it doesn’t lose the trademark.

Millions of glowing microscopic organisms light up the waters of this luminous lagoon.

An art gallery home to a plethora of art from local artists who can often be seen hard at work.

Inside this store, a mysterious statue draws visitors from the world over.

A Wild West jailhouse that slid down the mountainside.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

A chance to sleep among the firs and pines of the Oregon forest.

An iconic 1960s theater with a Buckminster Fuller-style geodesic dome.

This beloved roadside attraction welcomes visitors with his signature neon smile.

Bill Murray bowled three straight strikes here at Reno's "Taj Mahal of Tenpins."

The arch that celebrated the completion of the Lincoln and Victory highways.

Beneath a Virginia City bar is the entrance to an abandoned gold mine.

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

A former mining hospital is now a vibrant artistic hub.

These once-beautiful historic graveyards are set against the barren Virginia City hills.

Back in the day everyone who was anyone played this historic western theater.

The now-abandoned tunnels were built for the transcontinental railroad on the route where the first wagon train entered California.

This settlement on the original Transcontinental Railroad began by harvesting timber, but transitioned to a forgotten 19th-century industry: harvesting ice.

Historic home to one of the most famous women pioneers of the 19th century.

Scotland still bears an enormous scar of its Roman past.

An unusually designed bridge from the 1920s was built to withstand the tides and winds of Maine.