The sole surviving relic of the San Francisco neighborhood cobbled together from old horsecars and streetcars.

Where NASA's satellites and rovers phone home.

A humble garage, world-famous for being the epicenter of a technology revolution.

The home of one of California's most important horticulturalists wilts amidst a lovely park.

The Mighty Wurlitzer organ continues to belt out the tunes at downtown El Segundo's historic home for silent and classic movies.

Subterranean house made out of a grain silo, located in the Santa Cruz Mountains.

Thirteen trees representing the original thirteen colonies were planted with soil from historic Revolutionary battlefields.

A massive hydrovolcanic explosion left a half-mile wide crater in Death Valley.

The world's third-largest scale model of the planets.

This deceivingly ordinary warehouse hides an enormous collection of pop culture treasures.

At this deceptively beautiful beach, nothing is what it seems.

When he found his hometown was no more, Lowell Davis decided to recreate a "new" ghost town from scratch.

Stepping inside this coffee shop is a journey through time.

This artsy public restroom is shaped like a giant john.

An Idaho legend carved out a cave village with his own two hands.

This vintage car parts store is also a museum devoted to a squat little gem of automotive history.

The remnants of a failed socialist commune can still be found just off a California highway.

Once part of a dam servicing an early 19th century grist mill, the tucked-way falls are a tricky-to-find urban oasis.

Each winter this underground cave forms a dazzling ice palace.

Former wax museum from the 1960s, home to many wax U.S. Presidents and the famous White House miniature.

This unique zoo is the only place in the world where you can see all 15 species of crane.

A New York warehouse filled with an enormous amount of goods saved from the landfills and donated for creative use.

The quirky salon doubles as a retro museum run by the world's leading "hairstorian."

NASA's leading space science lab started by a co-founder with deep ties to the occult.