Time-Lapse Video of King of Prussia Mall Expansion

Check out the mall's progress after 103 days.

The King of Prussia Mall expansion project is in full swing.

The King of Prussia Mall expansion project is in full swing.

After 103 days, the two parts of the King of Prussia Mall are finally connected. Construction crews created a 13,000 feet long corridor made with 5,000 tons of steel.

Sure, it’s not quite finished yet and won’t be open until August 2016, but the folks at Simon Property Group offered a sneak peek on Tuesday. Check out this time-lapse video to see how the project is coming along so far.