California's own medieval Italian castle, authentic down to the 300-year-old iron maiden in the dungeon.

A veteran Disney animator turned his gift for storytelling to a museum devoted to his love of a California city.

This historic California cemetery holds the bodies of veterans of both the Civil War and the Donner Party.

The largest Star Wars collection in the world is its own galaxy of collectibles.

Hundreds of secret cabinets built into the walls of legendary poisoner's private work room.

A former utopian healing center created by a huckster and built by derelicts.

A forest of phallic offerings found in a quiet corner of a hotel car park.

An eccentric garden of sculptures crafted in India decorate an Irish green space dedicated to Alan Turing.

A mysterious and endangered parasitic herb from the California desert.

Home to the "Circus" trees created by Axel Erlandson.

A battle between nature and architecture in the Cambodian jungle.

Centuries-old bridges grown from tangled roots.

White cockroaches and other cave species occupy this massive series of lava tubes.

Spiral labyrinth hidden in the hills above Oakland, CA.

This whimsical castle of grottoes was the labor of love of a French postman, and one of the greatest achievements of outsider architecture.

Monasteries on rock pillars, once accessible only by frayed ropes.

The "dragon babies" of southeastern Europe.

A monster in the plant world, up to 10 feet tall and smelling of death.