mental floss presents Forbidden Knowledge

Think of anything bad, from art heists to Genghis Kahn, and it''s likely to be included in this wickedly smart and humorous guide to the seedy underbelly of basically everything. The brainiac team at "mental_floss", creators of the hit magazine and last year''s Condensed Knowledge, have scoured the darkest, dirtiest corners of history and the globe to gather this ultimate collection of the bad stu...