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

Long-abandoned trolley tunnels just a mile away from the White House are turning into an art space.

A tiny piece of the Moon is embedded in this stained glass masterpiece.

One of the dwarven trees dates back to 1625 and survived the Hiroshima bombing.

Once home to seven different roller coasters, Glen Echo has undergone many transformations since its founding in 1891.

Two dozen pinball games hidden away inside a most unlikely location.

Remnants of a storybook amusement park hidden behind a strip mall.

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

It's not hard to see why the historic Peabody Conservatory of Music's library has been described as a "cathedral of books."

An abandoned church gets a second life as a massive beer hall and event space.