Moved decades ago from Holland (Netherlands) to Holland (Michigan), this 18th century windmill has a cap covered by nearly 2260 kg (5000 lb) of sheet copper, individually cut and hemmed from 20-oz. sheet copper before being secured with brass screws. In many cases, the uniquely curved shape of the cap required shingles be rolled by hand to ensure they lay flat against the roof contours. Photo © Brian Blank
