Amazing meticulous gardens of personal wood carvings, Hydrangea, Canna, and many other flowers.

A masterpiece in Golden Gate Park by virtue of the artist’s debt.

Home of modern dancer famously strangled by her own scarf.

Hiding amid the largest camellia collection in the country lies a charming children's maze, donated by a secret admirer.

A temple devoted to inner esoteric mysteries located in a California commercial strip.

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

Step inside Lucy, the world's largest "elephant."

An intriguing three-sided folly is a testament to one man's devotion to Catholicism and the number three.

This "Plant Farm Museum" is home to the divinely inspired and visionary outsider artwork of Reverend Howard Finster.

Once the gateway to the utopian dream-village of a Civil War embalmer.

A large sculptural artwork and garden in Escondido, California.

This historic tower in the California desert promises visitors a "vortex of good vibes".

The Magical World of George Phar Legler.

Crumbling remnant of Rio's colonial past tucked behind Corcovado mountain in the neighborhood of Cosme Velho.

Hydraulic systems in an ancient underground Iranian city.

Fantastically decorated underground chambers built in the 1760s.

These azure waters were thought to lead to the Mayan Underworld.

Trick water gardens from 1619 featuring a 200 piece mechanical theater powered by water.

The hidden "ballroom" under a mansion lake was built by a criminal who ate a cyanide pill during his trial.

A six-story-tall golden pyramid, surrounded by a moat.

A historic house devoted to the teachings of a 1700's prophetess and her mysterious box of revelations.

Headquarters of the legendary clairvoyant's readings, spiritual hospital, and massage school.

Ukrainian defense contractor's center for studying "pyramid energy."

This monster fiberglass crustacean stands watch over the self-proclaimed "lobster capital of the world."