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

Towering basalt columns, a creation of fire and ice.

Crypt mausoleum in cathedral's basement contains relics of third century Roman martyr, Saint Vibiana.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

The abandoned zoo enclosures offer a perfect place to experience the other side of the bars.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

An artsy hidden staircase leads to breathtaking views of San Francisco.

Under the right circumstances, this waterfall in Yosemite briefly turns a luminescent fiery orange.

A glimpse into the lives of the the Miwok and Paiute people in Yosemite National Park.

The interior of the Overlook Hotel in "The Shining" was based on this Yosemite original.

Four hundred granite steps were built into this massive rock by the National Park Service.

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

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

To honor a beloved Austin radio DJ a neighborhood bridge has been covered in a loving mosaic.

Two small markers remember the Alamo's feline protectors.

Legend has it the commander of the defenders drew a fateful line in the dirt with his sword just before the final battle.

This small park features a monumental fountain wall, providing a great photo opportunity in the middle of Houston.

A private collection of massive steel monsters guarding a Texas pipe works.

An emerald-green grotto just a short trip from Austin.

Arcadia is home to a haven for nature geeks and 80s TV lovers alike.

Sports history, made in the Arroyo Seco.

A Masterpiece with a Tragic History.