The quaint little Vermont town played a quaint little Connecticut town in Tim Burton's "Beetlejuice."

A sophisticated astronomical tower built by one of the greatest Persian scholars of the Islamic Golden Age.

Where America's first doomsday cult awaited the end of the world.

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

A 140-year-old castle with underground caves hidden in San Francisco.

Bring your own cardboard to the slippery slopes of concrete hidden in a neighborhood park.

From the sky, a kaleidoscope of color brightens the grey landscape of the San Francisco Bay.

Rodin's famous depiction of Dante's 'Inferno', amidst a sculpture garden of many of his other works.

Successful artist residence program has filled this ranch with dozens of sculptures over the years.

San Francisco Bay's ghost town.

An archive of nearly every day of Buckminster Fuller's life.

Apple memorabilia in an undisclosed warehouse, hidden for undisclosed reasons.

Volunteer-run library dedicated to exploring five decades of activism history.

An abandoned castle owned and ignored by Masons carries a cursed history.

Collapsing castle on the Hudson river was once the storage site of military surplus business.

High atop the Eiffel Tower is a small apartment built exclusively to entertain the science elite and make the rest of Paris jealous.

Natural cathedral designed by Italian artist Giuliano Mauri.

This Southern Californian Conservation Center is home to singing and howling apes.

World's oldest operating science fiction and fantasy club, once home to Ray Bradbury and L. Ron Hubbard.

Dioramas and animatronics lead you through the story of Bhagavad-gita, the Indian literary classic.

A commonwealth favorite in the heart of Pasadena.

Former 1954 Del Mar Train Station now serves signature cocktails and delightful culinary treats, and still operates as a Metro stop.

Panorama exhibition hall in old silent theater with a beautiful backyard garden.

Crypt mausoleum in cathedral's basement contains relics of third century Roman martyr, Saint Vibiana.