Each summer, the migratory bats living beneath the bypass form "batnadoes" at dusk.

Where the rich wintered in Pasadena.

Colorado Boulevard’s historic bookstore, operating since the bustling city of Pasadena was merely some orange groves and a few ostrich farms.

Crumbling pink walls and murder memorials preserve the pioneer history of Joshua Tree.

You don't want to get caught in this trap--or do you?

Will Geer's outdoor theater started as a mountain retreat for actors, musicians, and other artists who were blacklisted during the Red Scare.

A popular winter vacation destination for migrating monarch butterflies.

Bug-devouring flora are the stars of a special wing of the glass conservatory.

The lead horse on a Disneyland merry-go-round that is older than the park itself.

I Street Bridge is the heaviest swinging center bridge in the United States.

When California condors were hovering on the brink of extinction, this recovery program was charged with helping the birds thrive again.

The remains of a 12th-century chapter house in Golden Gate Park.

A massive hydrovolcanic explosion left a half-mile wide crater in Death Valley.

Millions of years of oxidation make a drive down this winding Death Valley road surprisingly colorful.

The White House Situation Room was taken apart in 2006 and shipped to the Ronald Reagan Presidential Library.

This black shoreline is made up of exploded lava particles.

These picturesque Hawaiian falls are home to a rare species of fish that uses a special sucker to climb up cliffs.

Earth's tallest volcano is sacred to Native Hawaiians, and home to a dozen world-class observatories.

This coastal cavern is associated with the Hawaiian god of creation.

Once the site of the Hawaiian monarchy, this building was originally designed as a palace.

This mom-and-pop Japanese sweets shop has been serving cloud-light mochi for almost a century.

Climbing this abandoned railway leads to breathtaking vistas of O‘ahu.

Try the frozen treat that inspired Arrested Development's famous banana stand.

This bronze statue commemorates the strange and beloved mascot of UC Irvine—the only university to be represented by a giant anteater.