Cinderella Castle was completed in July 1971, after about 18 months of construction. The castle is 183 feet (56 m) tall, as measured from water-level. Most sources quote the height as six feet taller when measuring from the concrete bottom of the moat, which itself is 6 feet (1. 8 m) deep at the bridge. Cinderella Castle is more than 100 feet (30 m) taller than Sleeping Beauty Castle at Disneyland in Anaheim, California. A set-building trick known as forced perspective makes the castle appear larger than it is. At higher elevations, its proportions to full scale are reduced for elements such as stones, windows, and doors. This castle was the largest Disney theme park castle until the completion of the Enchanted Storybook Castle in Shanghai Disneyland Park.