Magic Kingdom is one of four theme parks at the Walt Disney World Resort near Orlando, Florida. Magic Kingdom was the first park built at the resort. It opened on October 1, 1971. It was designed and built by WED Enterprises. The park's layout and attractions are similar to Disneyland in Anaheim, California. In 2009, the park had around 17.2 million visitors, making it the most visited theme park in the world.