Oregon's only closed-basin hypersaline lake, an important stopover for migrating waterfowl, is in danger of drying up completely.

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

Where the famed daredevil attempted to launch himself across a canyon in a custom-built rocket.

These falls, sometimes called the "Niagara of the West," still put on a good show at the right time of year.

This Yellowstone geyser may not shoot as high as the nearby Old Faithful, but it erupts for considerably longer.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

A beautiful geyser under environmental threat.

A small Wyoming town is home to the state's oldest-operating soda fountain.

A dramatic coastline that’s home to a rare pine tree.

A more chill but no less fascinating version of the famous ancient archeological site.

An ancient capital city that dates back 3,000 years and harbors many surprises.

A dry lake is what remains of a community founded on a real estate scam.

The helicopter that "Tricky Dick" absconded from the White House in on his last day in office.

The oldest attraction in Disneyland is a prehistoric stump that Walt may have bought for his wife.

A family agreed to sell their property to Disney on the condition that this tree, planted as a wedding gift, would not be removed.

Inspiration struck on this seat outside the Griffith Park merry-go-round.

Instead of faces, these sculptures have barcodes—statements on societal dehumanization.

A tribute to the disposable cups that were once manufactured here, this 68-foot-tall statue would be difficult to throw away.

Wild West history in Hollywood style.

This park is home to California's first oil boomtown, with structures that have stood for more than a century.

The former home of silent film star Harry Carry.

This glamorous old building is said to have inspired the Tower of Terror.

A few iconic structures are all that remain of America’s first outdoor shopping mall.

There are lots of hands and feet stamped in the cement in front of Grauman’s Chinese Theater, but Mel left behind something extra.