The United Parcel Service’s Louisville, Kentrucky processing center, also known as Worldport, moves 2,000 packages every 17 seconds.
Worldport is a 5.2 million-square-foot processing facility which includes 70 aircraft docks and 155 miles of conveyor belts that move packages from 220 countries and territories.
In this video from Engadget, you will see how exactly they pull off such a feat including sorting up to 416,000 packages an hour.