Seen: The Secret Museum of Mankind website, the “World’s Greatest Collection of Strange & Secret Photographs” – Boing Boing Ian Macky says: “Published in 1935, the Secret Museum is a mystery book. It has no author or credits, no copyright, no date, no page numbers, no index. Published by ‘Manhattan House’ and sold by ‘Metro … Continue reading The Secret Museum of Mankind website, the "World's Greatest Collection of Strange & Secret Photographs" – Boing Boing