For almost 100 years, this site of peace and spirituality has existed on the California coast.

Eat a tasty meal in the house where John Steinbeck was born.

At this Denver landmark, the meals are compulsory, the sopapillas are complimentary, and the insanity is everywhere.

Wall to wall taxidermy at Denver's oldest and most exotic steakhouse.

The largest self-built castle in the U.S., six decades in the making.

The superstar of Cold War nuclear bunkers has been featured in countless films but is now barely operational.

Inside this shop, visitors are treated to a unique blend of natural history and art.

A luxurious doomsday bunker hidden beneath an unassuming Las Vegas home offers the best of subterranean suburbia.

Decades' worth of lost and forgotten objects make up the collection of this tantalizingly odd little museum.

This dark, quiet forest on the outskirts of San Diego is dense with rumor and lore.

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

The cobbled together compound of a deceased artist which now serves as a filming location.

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

Huge otherworldly domed rocks on the shore of a deadly lake.

This 1920s masterpiece of French Quarter architecture hides a secret tunnel used by Albert Einstein.

The most unique castle in all of Southern California, entirely constructed from repurposed materials.

A shockingly detailed small scale recreation of the temples of Abu Simbel.

Every day is like Christmas on this street where the traditional Neapolitan nativity scene comes to life.

The Neapolitan Cult of the Dead still cares for the skulls at this mini-Fontanelle.

A labyrinth of ancient tunnels hidden below the city holds the ruins of 2,500 years of history.

An underground paleo-Christian burial site composed of the remains of several cemeteries and Basilicas.

Skulls from the plague of 1656 and World War II bombings are united by a cult dedicated to caring for the ancient dead.

A wunderkammer of curious objects and intriguing art nestled within a hub of ancient Roman sites.

A museum dedicated to restoring vintage aircraft, located at a working airport.