An eerie, decaying ghost town destined to fade into the forest.

The haunting "Hell House Altar" is one of the few remnants of an abandoned college that has been a magnet for local legends.

One of the oldest used bookstores in the U.S. has been selling antiquarian treasures since 1825.

One of the now-less-hidden floral gems of the "Emerald Necklace."

No one really knows how these old hobby horses got here, but the herd keeps growing.

The often-overlooked ruins of one of the first buildings designed by famous landscape architect Frederick Olmsted.

Ralph Waldo Emerson spent two years living here decades before it became a Frederick Law Olmsted-designed park.

Once an ambitious nature spa, these forest ruins now provide a serene monument to failure.

The remains of an idyllic small town built for the film 'Big Fish' still stand around a rundown main street.

Once a private collection, now the only museum of arms and armor in the Western Hemisphere - CLOSED.

This medieval castle overlooking the Elzbach river looks just like it did hundreds of years ago.

The private clubhouse for the members of the Academy of Magical Arts.

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

This castle was established by the 4th Duke of Montrose and is connected to the Buchanan Clan.

The birthplace of an eccentric alchemist and possible inspiration for the fictional reanimator of monsters.

This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

A hidden alley in urban Baltimore is a haven for graffiti artists.

This free, take-a-book shop seems like a trick but isn't.

The headquarters in Salem doubles as an occult art gallery.

Rural churches in the middle of nowhere with religious frescoes by famous artist.

One man's homage to the sun continues to grow like a glass fractal.

Wondrous sandstone hoodoos where Native Americans collected clay for pottery, 9,000 years ago.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

A snapshot of the city's fascinating voodoo culture.