One of the most scenic stretches of road in America winds between some of the country's oldest trees.

The only rotating bar in New Orleans has been slowly spinning since 1949.

This futuristically sylvan church is a glass-enclosed marvel of modern architecture.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

This geothermal hot spring hides beneath a slowly growing mineral dome.

The world's longest known cave system.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

A beautiful geyser under environmental threat.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

A trash dump made beautiful by nature's power.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

A giant Troll lurks under one of Seattle's oldest bridges.

Dramatic river bend surrounds a natural red-rocked pedestal.

World's first "penitentiary," meant to be humane, drove men insane.

A sculpture made of 10 Cadillacs as a monument to the "Golden Age" of the American automobile.

A library built during San Francisco's pioneer times is a student's retreat, bibliophile's sanctuary, and chess player's delight.

Since 1973, this block has been home to the most concentrated collection of murals in San Francisco.

Inside an old airplane hangar, friends and strangers alike play on a massive trampoline.

A Barbary Coast watering hole built into a Gold Rush shipwreck.

This private residence was the template for one of the most beloved television homes of all time.

This concrete tangle of square pipes has stood as a proud thorn in the city's side since the '70s.

San Francisco's urban bison herd has persisted in the face of extinction, development, and disease.