A strange and abandoned castle in Connecticut with Sherlock Holmes' name on the gate is visited. Also: behind the scenes of what some consider the weirdest show on Earth; and looking for treasure 800 feet beneath a barren and unforgiving desert.
Touring one of the world's oddest hotels, which boasts 110 rooms of kitsch and color. Then, a thriving metropolis where the dead outnumber the living is visited. Finally, the frigid depths of Lake Tahoe are explored.
Former CIA officer Mike Baker searches for a national treasure 13 floors below the busiest train station on Earth. Other adventures include sleeping in a cave and visiting the reportedly quietest place in the world.
A journalist investigates what lies beneath the streets of San Francisco. Then, a large cave in Louisville is explored; and reporter Hunter Ellis enters a chamber underneath Houston that resembles a Roman ruin.
Included: the search for an eternal flame burning bright inside a waterfall in New York; a trip to Washington state to investigate a mysterious prairie covered in suspicious mounds; and a tour of a California mansion made of garbage.