The 5.5-mile ring of steel posts around the Capitol Building is one of the largest (and most uniform) of its kind in the world.

Look closely and you’ll notice that the color changes a third of the way up the tower.

The oldest building in the District of Columbia was preserved because of a mistaken connection to George Washington.

A tiny piece of the Moon is embedded in this stained glass masterpiece.

Home to items never before seen by the public.

A former mining hospital is now a vibrant artistic hub.

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

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."

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

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

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

For almost 100 years, this site of peace and spirituality has existed on the California coast.

Art Deco stylings conceal the true nature of this bridge.

A replica of the first public theater built in California.

Hidden inside a gift shop that doubles as a museum, this gargantuan yo-yo can only be operated by crane.

Downieville's largest Gold Rush structure still standing has one of the longest bars in California.

This cabin from the 1850s is one of the first structures built by Chinese immigrants in California.

Fake rail crossings mark the site of an influential doctor's demise.

This controversial depiction of the "Founder of California" looks as though it was sculpted from mashed potatoes.

Pillars made of 700 pieces of luggage climb to the ceiling of Sacramento Airport's baggage claim.

This 19th century hydroelectric powerhouse was the first of its kind.

An old whaling station now serves to give the public a look at the commercial whaling industry, no longer a part of Monterey's economy.

The last of a gourmet supermarket chain, this store helped spark California's Food Revolution.