An eccentric inventor's castle home with its own indoor weather system.

This upscale streetwear store is hidden behind a fake Snapple machine in the back of a deli.

A luxurious 1880s hotel with its fair share of Tiffany stained glass, Edison electricity, and of course, ghosts.

The only swimming pool listed on the National Register of Historic Places is emptied and refilled each day with naturally filtered water.

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world's largest coastal brick fortresses.

At the supposed instruction of Ben Franklin and Socrates, a Spiritualist believer intended to birth a mechanical messiah here.

This candy-colored storybook village originated as a 19th-century Methodist campground.

New England's "Witches of Eastwick" locations, in all of their quaint white churched glory.

Hut with supplies for shipwreck survivors.

This picturesque abandoned home is rumored to be a spite house.

This railroad tunnel was once the longest in Massachusetts.

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.

An alley way dedicated to graffiti and street art is a constantly changing street gallery.

On top of Gibbet Hill lie the ruins of a lavish turn-of-the-century estate that never quite came to be.

Stay at this storybook estate, featuring Sir Henry Hudson Kitson's masterpiece "Gingerbread House."

Trash escaped from a landfill to fill beaches with all kinds of treasure.

This miniature feudal castle was built on a whim to honor a US Navy pioneer.

35,000 grape hyacinths flow like water down a garden hill.

This former Masonic hall has been turned into an art project that uses even more metaphysical iconography.

One of the most scenic falls in Massachusetts has a history of death and grim legend.

A beautiful Victorian-era cemetery, complete with a miniature village.

This secluded aqua waterfall in the Grand Canyon is the perfect swimming hole, and the Havasupai tribe's fiercely protected natural wonder.

Quirky castle designed by the American actor best known for portraying Sherlock Holmes on stage.