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

One of few lasting examples of the brief octagon craze that developed into folly.

A modern mechanical planetary system, part of a 10,000 year clock.

A 1920s speakeasy that had rum runners racing up and down the shores of California.

Over 300 taxidermied animals in a Californian restaurant make for a taxidermist's dream and an animal lover's nightmare.

An "anarchical" no man's land, complete with garbage sculptures and a hobo-run "Landfillian Library."

Bridges, terraces, and replicas of historic structures all built of rock and petrified wood by one man.

An extensive collection of ancient Egyptian artifacts and mummies.

The largest drain hole in the world.

A heavenly experience, right here on Terra Firma.

An underground mansion with fruit-bearing trees and grapes growing beneath the surface of central California.

A regular looking rock with an unbelievable history.

Furniture tries to escape an abandoned building in San Francisco.

Spiral labyrinth hidden in the hills above Oakland, CA.

Contemporary art inspired by natural history and science drawing on ancient techniques in a modern world.

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

A walk-in working camera obscura produces 360-degree live images of the San Francisco coast.

Chewing gum tycoon's memorial lies perched over wife's botanical gardens on Santa Catalina Island.

Carnivorous plants, medieval aphrodisiacs, and the largest original wood structure glass conservatory in the western hemisphere.

Triangular House built on a leafy residential street in St. Paul.

A Mysterious Masonic tomb in San Luis Obispo.

Treehouse motel and treehouse-building school.

Home to the Amorphophallus titanum "Corpse Flower," which is among the largest flowers in the world and also smells powerfully of rotting flesh when in bloom.

A hotel and restaurant serving as the mecca of kitsch.