This unusual lava tube spouts seawater during high surf.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

Take a self-guided tour through one of Colorado's most elevated mining districts.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

This small interfaith chapel lies not far from the rim of the Grand Canyon.

The remnants of a creative early method of wildfire prevention.

A monument to the one-armed geologist who led the first documented expeditions through the Grand Canyon.

An homage to everyone's favorite prehistoric cartoon family.

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

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

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

The awe-inspiring ship from the golden era of cruising has an incomparable history and a reputation as one of the world’s most haunted places.

Oldest building in California still in use.

One of the largest trees of its kind in California.

This futuristic bridge is one of the longest self-anchored pedestrian bridges in the world.

L. Frank Baum wrote part of the "Wizard of Oz" series in this wooden Victorian beach resort.

Swarms of butterflies cannot compare to the awe inspired by the publicly-funded nakedness once displayed in this sunken garden.

A sculpture of the famous photograph stands on San Diego's "Greatest Generation Walk."

This enormous World War II relic is one of the largest wooden structures in the world.

One of the largest helium balloons in the U.S. is a 112-foot ginormous orange.

A Christian monastery stands on what was once a holy Incan temple.

Built on the remains of one the Incas’ most important gathering spots, this square keeps the spirit of a fallen empire alive.

Situated on a sacred Inca site, this 16th-century cathedral took nearly 100 years to build.

A backdoor to Machu Picchu that only the most foolhardy infiltrator would attempt to breach.