Throughout the Disney California Adventure park transformation, Walt Disney Imagineering has kept guests updated on the expansion at Blue Sky Cellar – a space dedicated to special sneak peeks of the new experiences coming to the park. Beginning Monday, September 19, Blue Sky Cellar will close in order to be updated once again. When it reopens on September 23, guests will find new videos, models and renderings of the latest additions coming to Buena Vista Street, Cars Land and more.

Last week, we showed you the topping off of the Carthay Circle Theatre with the arrival of its 17-foot, 5,000-pound cupola. I know that many of you have commented on how much you enjoy the time lapse construction videos we show from time to time on the Disney Parks Blog. Below is a peek at one of the items to be featured in the updated Blue Sky Cellar – a time lapse video of Carthay Circle Theatre construction through last week.

Check back on Disney Parks Blog for more from inside Blue Sky Cellar – and be sure to check it out for yourself at Disney California Adventure park.