Secret Manor, a house full of legends, the least of which is the haunting of long-deceased ladies of pleasure.

A former utopian healing center created by a huckster and built by derelicts.

Home to the "Circus" trees created by Axel Erlandson.

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

These old stone ruins in the Oregon wilderness were once bathrooms and are steeped in legends of murder.

These millipedes glow not out of attraction, but as a not-too-subtle warning.

This morbid, delightful curiosity shop offers everything from animal bones to human teeth.

A mining town once rife with murderous disputes over its copious treasures now creates income as a popular spot for photo shoots.

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

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

Hundreds of trees made from glass bottles make up this forest on Route 66.

Shop of curiosities with a dinosaur museum tucked in its basement.

A semi-scholarly approach to sex.

A 140-year-old castle with underground caves hidden in San Francisco.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

Read a book next to a Midtown waterfall.

A Swedenborgian glass church surrounded by redwoods sits perched atop a massive landslide area.

A long abandoned hospital building on the outskirts of NYC.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

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

A magically clear, blue river that seems to spring from nowhere.

Canyon walls shrouded in ferns.

Once thought to be the oldest living tree in the world, Methuselah was germinated before the Egyptian pyramids were built.

A speakeasy takes on Chicago's drinking culture.