How many beer cans does it take to side the exterior of a house? With the help of his wife and neighbors, John Milkovisch drank enough brewskies to find out. He started reusing the empty cans as a type of "aluminum siding" in 1968 and finished the job 18 years later. Ripley's Believe It or Not estimates that over 50,000 cans adorn the house, which is now owned by the Orange Show Center for Visionary Art. Aside from keeping all these cans out of the waste stream, the extra layer of recycled insulation had the added benefit of lowering the family's energy bills. The house is open to the public on weekends.