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

An isolated dive site teeming with cnidarians.

The overgrown ruins of a once thriving World War I-era copper mine.

An outdoor sculpture park of giant pink robots and post-apocalyptic Christmas scenes.

An Old West film set seen in countless TV shows and movies is open for the public to explore.

The beloved dining spot stands at the cross-section of Hollywood and the Old West.

This little blue house pokes out over the campus of UC San Diego, seven stories high.

This geothermal hot spring hides beneath a slowly growing mineral dome.

This large collection of tiny things revels in the art of fine machinery well made.

Once strictly off-limits, this lower level housing curious and priceless vehicles of the Petersen Automotive Museum is now open to the public.

One man's vast collection of artifacts and ephemera from matchbooks and postcards to vintage neon signs and cars.

Small museum packed with artifacts recovered by the man rumored to be the real-life inspiration for Indiana Jones.

One man's homage to the sun continues to grow like a glass fractal.

America's most famous piece of self-built architecture.

Crystal clear lake with a shoreline of travertine located in a Colorado canyon.

A 140-year-old castle with underground caves hidden in San Francisco.

It should come as no surprise that the best view of the Hollywood sign is from Batman's lair.

The caldera of this mini-volcano has been turned into a naturally heated mud bath.

In paradise, feral pigs have claimed an island all to themselves.

On Japan's Tashirojima Island, cats are king.