March 25, 2015 3:47 PM EDT

To get ready for its 60th anniversary celebration in July, Disney has released a time-lapse video which shows the park’s construction in the 1950s. (It officially opened on July 17, 1955.)

The video shows several bare-bones structures becoming full-fledged houses and castles — and eventually shows the completed park swarming with visitors.

This video is just a small part of Disneyland’s 60-year anniversary celebration, which will also include keeping the park open for a full 24 hours.

Read next: Why Disneyland Closed its Doors on Christmas

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