This giant temperature attraction created some giant electric bills.

The Giant Lemon of Lemon Grove.

An elaborate gift from Claus Spreckels is now a piece of San Francisco history.

This traditional garden in the San Fernando Valley doubled for Star Fleet Academy, and is irrigated entirely by wastewater.

The tragedy of the Japanese internment camps is remembered here by a stark "Soul Consoling Tower."

The unbelievably opulent home built for an infamous newspaperman.

An extraordinary final resting place full of oversized art, amazing statues, and dead celebrities.

The L.A. Zoo has a secret garden of rare bootleg cycads, a palm specimen dating back 280 million years.

An abandoned Jazz Age dream home and con man's hideout in Death Valley.

This unlicensed collection of fast-food memorabilia sits on the site of the first ever McDonald's restaurant.

A world-class observatory in the California desert.

Quite simply the largest tree in the world (by volume).

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

Towering basalt columns, a creation of fire and ice.

This historic national park is covered in the stunning ruins of red rock pueblos.

Ancient pueblos built into the base of a natural canyon wall.

Some of the tallest ancient American ruins continue to inspire awe and curiosity.

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

See massive fossils that are over 200 million years old in northeastern Arizona.

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

A sharp bend in a dramatic river canyon cut through red rocks.

Most-visited and most-photographed slot canyon in the American Southwest.

Come for the speed, leave in love with the desert.

A towering tribute to decisiveness stands on the spot where Brigham Young and his followers decided that this must be the place.