In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

Monumental sculptures of Patrick Amiot, constructed from debris, detritus, and determination.

A harem-inspired Moorish fantasy design in a Victorian-era Welsh castle.

The castle still holds traces of the abandoned Roman fort it was built atop.

High Victorian fantasy created a fairytale castle out of a ruined fortress in Wales.

A hundred copies of Antony Gormley's naked body stare out across the water.

One of the largest objects salvaged from the famous sunken passenger ship.

Created as a punny statement about genetic engineering this monstrous hybrid statue has become a beloved icon.

California's own majestic geyser is powered by a subterranean volcano.

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

Home to an apple tree that can produce 25 different varieties of fruit.

A tribute to one man's legacy of improving the accordion's reputation.

Nursery with extensive collection of flesh-eating plants operated by the author of "The Savage Garden."

The fossilized remains of ancient California redwoods.

Hand-powered race of alternative forms of transportation.

A tribute to the life and work of the beloved "Peanuts" cartoonist.

340 bicycles, 65 feet high.