Disney World, the largest theme park in the world, welcomed its first guests on Oct. 1, 1971.

Which came first Disneyland or Disneyworld?

Disneyland in Anaheim, California was the very first of Disney's theme parks. It opened on July 17, 1955. Walt Disney World near Orlando, Florida (consisting of just the Magic Kingdom and two resorts at the time) opened on October 1, 1971.

How long did it take to build Disney World?

It was completed in July, 1971 and took about 18 months to complete. It is 189 feet tall, designed to be seen from the Seven Seas lagoon at the front of Magic Kingdom. The building cost about $4.7 million at the time to build – not including any of the interior work or updates that have taken place since the 70s.