In the 19th century, the mentally ill were often sent to horrific asylums. Today they fill the nation's jails; the conditions aren't much better. Last year, almost 1.1 million people with serious mental illnesses were arrested nearly 2 million times.
It's those old asylums — mostly closed, often abandoned — that have fascinated photographer Christopher Payne. A few years ago, he put together a book of images from those buildings, titled Asylum: Inside The Closed World Of State Mental Hospitals.