Have you heard that a few men in Poland claim to have found a train that the Nazis hid in a tunnel at the end of World War II? That report makes us think about all the stories that have circulated over the years about gold hidden in boats, cars and airplanes that were formerly owned by drug dealers, smugglers and other bad people. So, what are the odds that you really can buy a car or boat at an auction and find gold in a hidden compartment?