For unbelievable shopping under one roof in Grapevine, check out Grapevine Mills, home to more than 1.6 million square feet of retail space.  This outlet mall has all of your favorite retailers like Forever 21, Saks Off 5th, Nike, Last Call by Neiman Marcus and H&M to name a few.  Grapevine Mills is also home to a Legoland Discovery Center, a 500-seat 4D cinema, Sea Life Grapevine Aquarium and endless dining options.