One of the last few places in Manhattan that employed a pneumatic systemic keeps it on display.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

In the middle of downtown Brooklyn lies a 165 year old secret hidden right below the surface (closed to the public indefinitely).

Ride the subways of yesteryear.

Home of Howard Hughes' Spruce Goose.

An institution that preserves the history of institutionalization.

World's largest porcine hairball sits in a collection maintained by Benedictine monks.

Hollowed out cedar log tubs set in an ancient towering forest.

Where Nor'easters go to die.

In the midst of a residential town in Washington exists a property saturated with one man's artistic creations.

The longest continuous lava tube in the continental U.S. offers 2.5 miles of dark explorations for the adventurous.

An extraordinary mixture of natural beauty and man-made phenomena.

One of the world's tallest, oldest, and most disgusting chocolate cascades.

Tens of thousands of tiny birds swarm into one school chimney every fall.

Delightful disarray of found objects and clutter.

Hunting trophies decorate Oregon's most unique bar-restaurant.

Beyond being incredibly fun, not much can be said about the Hole with certitude.

Their motto is, "We've been bonkers for hats even longer than you have!"

Gigantic private toy museum featuring among finest collections of antique mechanical banks in existence.

An emporium for the weird, creepy, rare, and just plain gross.

The seamy, underground secrets of Portland's criminal past.

The home of the world's first and last remaining "wooly ant."

A monument to the egos of two railroad magnates that fell into decline along with their careers.

The largest collection of two headed animals in the world.