Machinery left over from California's once thriving mercury industry now attracts artists and explorers.

Acres of natural wonders left behind by a socialite-turned-gardener.

The first attack on the continental U.S. during WWII occurred off the coast of a quiet California golf course.

360-degree virtual reality chamber physically immerses scientists into their data.

This strange seaside tower got its name from a wealthy eccentric who would hide coins among its stones.

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

Remants of foundations, streets, and streetcar tracks inhabit the cliffs where a landslide occurred in 1929.

The hidden jewel of Disneyland: a members only playground for the Disney elite.

Working mining and drilling equipment demonstrate 150 years of energy history.

This seaside production studio was built to film 'Titanic' and has been the wet set of choice for other Hollywood productions since.

A couple turned their front yard into an artistic masterpiece.

An inconspicuous footbridge beloved by San Diego locals.

Stepping away from the glitz of mobsters and casinos to learn about the other history of Vegas.

The largest man-made crater in the U.S. marks the spot where we once tested mining with nukes.

This massive crater in the middle of nowhere was used to train astronauts for moon landings.

The largest island on the great salt lake is home to curious creatures and strange stories.

A gothic palace of endless stalagmites and pseudoscorpions waits within one of the world's most beautiful caves.

Ancestral Puebloan ruins, natural arches, and box canyons abound in this seldom-visited corner of Monument Valley Navajo Tribal Park.

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

Rippling sand dunes frozen in the Arizona rock.

Largest collection of mounted dinosaur specimens in the world.

Here, at the "world's longest art gallery," you'll find forty miles of ancient petroglyphs and pictographs.

Once a menacing challenge for trailblazers, this trail is now the most scenic drive in Utah.

Despite its name, this route in southern Utah offers a heavenly day trip.