At this hidden studio, the dying art of taxidermy is alive and well.

The first museum in the United States dedicated entirely to posters.

This once-private estate is now a dreamy, meditative garden that's open to the public.

The floor-to-ceiling collection in an old factory is a unique alternative to stuffy galleries.

A six-story treehouse offers spectacular views of New York's Finger Lakes region.

Amid the marketing blitz of modern Times Square is an elegant holdover from its showbiz glory days.

Unusual books about food and drink abound in this 19th-century New York townhouse.

Haunted Victorian house that inspired a legendary "Ghostbusters" court ruling.

Quite possibly the last cross all humans will ever see.

The Vatican of the movie industry turned into an actual church.

Haven for steampunks.

This interactive gallery makes you feel like you've stepped into a fantasy world filled with whimsical monsters.

An arcade packed with a rotating collection of unique independent video games.

This former crime corner has been turned into an eclectic community center.

An abandoned asylum once on the cutting edge of lobotomies may be reborn as a Christian college.

Not even a series of devastating fires could keep this odd castle in upstate New York from bouncing back.

Empty, but not abandoned, this cavernous Brooklyn loading dock was once considered the largest individual building in the world.

A once crucial portion of the Long Island railroad still lays abandoned, waiting to be turned into an urban park.

Just your average Marie Antoinette–themed speakeasy in an abandoned 19th-century subway tunnel.

This former theme park in New York's Adirondack Mountains fell into ruin before being resurrected as a state-run campground

This mouldering abandoned mental hospital was once a center for progressive healing.

The library of every book lover's dreams.

A hyper-luxurious, 12,000- square foot home might be buried beneath Queens, still waiting to protect you from nuclear missiles.

What was once a trend-setting, phrase-coining icon of architectural splendor is now a rotting, forgotten hulk.