Tonight we meet amateurs who investigate unsolved mysteries in their free time, including the librarian who helped solve a four-decade-old New Hampshire mystery.
'Where's the bridge?' - Five months after opening, Hardberger Park Land Bridge is a crowd-pleaser expressnews.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from expressnews.com Daily Mail and Mail on Sunday newspapers.