A former Oz-themed attraction that has fallen into disrepair, but still holds some of the original magic.

Commonly referred to as the most photographed Victorian home in the United States.

Treehouse motel and treehouse-building school.

Hut with supplies for shipwreck survivors.

Dim sum, served in a grand old theater.

A spectacular cave and a beguiling lake.

Small church built in the 19th century for whites and slaves to worship together.

The world's brightest bioluminescent bay.

The world's largest bioluminescent area was undiscovered by science until 2005.

Tour the world's largest deep-hole dimension granite quarry, where you can view the plant where gravestones are made and roll a ball down the outdoor granite bowling alley.

The "original web site," this farm in Northern Vermont encourages orb-weaver spiders to build their daily webs, and then sells the preserved masterpieces.

An isolated dive site teeming with cnidarians.

One car at a time please.

An Escher-inspired library dedicated to the wonders of the human mind, yet closed to the public.

America's first public mental health facility.

137 graves holding New England's earliest residents.

A wunderkammer hidden on the top floor of the Hartford statehouse.

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

The rocks in this arid basin leave trails of movement behind them.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

Thousands of well-dressed mummies below a monastery.

Despite being a perfectly pleasant place to be, Loyalton can't seem to attract any visitors.

These once-beautiful historic graveyards are set against the barren Virginia City hills.

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.