Rotting dome home spotted near Chapel Hill, North Carolina.

The enormous 250-room Vanderbilt mansion conceals hidden doors and secret passageways.

The man who first patented the Ouija board rests in peace beneath a headstone that playfully reflects that achievement.

This museum devoted to the gothic author holds such interesting ephemera as his socks and walking stick.

Delightful disarray of found objects and clutter.

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

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

A Saint Nicholas-themed ghost town in the Mojave desert.

Huge masonic hall in Philadelphia with lavishly themed rooms.

A house carved into a rock in the 1940s.

The abandoned personal amusement park of the King of Pop.

A whimsical village of unique treehouses resides in a Washington forest.

A French chateau, failed utopian community, odd museum, and Stonehenge replica in rural Washington State.

One of the last Jazz Age "Wonder Theaters" in New York City.

A sculptor's dream castle turned fantastical ruin.

For over 30 years the walls of this Harlem schoolyard have been a gallery of street art by "Kings and better."

This grand mansion has starred in everything from Bones to Buffy.

This massive redwood tree has a hole in the base big enough to drive through.

A once grand hotel is being retaken by the wilderness it once capitalized on.

Outsider art meets paleontology at this roadside reptile repository.

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

Yale University's home for rare works, including the mysterious Voynich Manuscript.

The largest permanent Monopoly board makes one of the longest games even bigger.

Sandstone rock formations that look like they belong on the cover of a progressive rock album.