Lake Coeur d'Alene, Idaho
There are a number of model T's sitting on the bottom of the lake, due to people in the early 1900s who would drive across the lake during the winter time in order to save half the distance in getting around the lake. When the ice broke, so did the chances for getting across. Also, there are some steamboats on the bottom that had been burned when they were no longer used to ferry people around on the lake. Divers frequently visit these ruins on the bottom.