(3) This Lincoln bust is an enigma to local historians in Pennsylvania. A few years after its dedication in 1909, the memorial disappeared, leaving behind scant evidence of its existence.More on this puzzling story here(1).(Special thanks to C2C listener Terrance Griep(2), writer of "Scooby-Doo Mysteries," for the news tip.)

1. http://news.aol.com/story/_a/vanished-lincoln-bust-baffles-historians/20080704164209990001?icid=200100125x1205238728x1200228278
2. http://www.terrancegriep.com/
3. http://news.aol.com/story/_a/vanished-lincoln-bust-baffles-historians/20080704164209990001?icid=200100125x1205238728x1200228278