Nationwide network of co-ownership underground catastrophe shelters.

This stunning sea creature-shaped home blends into the landscape like a fantasy villa.

Hundreds of trees made from glass bottles make up this forest on Route 66.

Unusual white sandstone formations in the Los Padres National Forest.

This beautiful ridge-top trail is dotted by tiny homes apparently built by a group of itinerant fairies.

An eccentric folk art landmark made out of discarded bottles by an inspired "grandma."

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

This symbol of peace is appropriately positioned overlooking the Pacific Ocean.

A Swedenborgian glass church surrounded by redwoods sits perched atop a massive landslide area.

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.

Come crisp December nights, this fairly plain neighborhood becomes a holiday dream world.

Gorgeous purple flowers drape from the world's largest blossoming plant.

A huge musical instrument played by the ocean.

This private residence was the template for one of the most beloved television homes of all time.

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

Towering basalt columns, a creation of fire and ice.

This naturally heated mountainous creek has created a group of neon blue pools of potentially deadly boiling water.

Eons old volcanic activity created one of the most stunning rock formations in the United States.

Once thought to be the oldest living tree in the world, Methuselah was germinated before the Egyptian pyramids were built.