A castle built by an eccentric medieval enthusiast in rural Ohio.

An abandoned relic of the city's failed experiment with below ground transit.

Prison made famous by The Shawshank Redemption has been out of commission since 1990.

Where beautiful signs live on forever.

In the early 1800s, surgery was also a show.

A museum devoted to bringing to light forgotten or neglected histories through exhibitions, education and public programming.

A rare view of a preserved Victorian science museum.

A terrific purveyor of natural history objects and curios.

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."

The headquarters of the Fraternitas Rosae Crucis, complete with Rosicrucian pyramids, all in the Pennsylvania woods.

Eccentric concrete mansion and museum designed and built by hand from the inside out.

A world-class collection of mechanical musical instruments and automata.