Its sprawling, 860,000-square-foot campus is home to 10 different factories, which manufacture Zara's most fashion-forward items of clothing — basically, the products that need more attention, a spokesperson said. These factories are connected to the distribution center through a network of secret underground tunnels that transport clothing on electric hanging rails.
Other items are sent to external factories around the world.
However, all the manufactured items will return to one of its distribution centers to be sent out to stores.