Editor’s note: This is part of The Know’s series, Staff Favorites. Each week, we offer our opinions on the best that Colorado has to offer for dining, shopping, entertainment, outdoor activities and more. (We’ll also let you in on some hidden gems). It was probably hard to imagine playgrounds, breweries and an ice cream shop on the site of Stanley Aviation when it opened 70 years ago on the Denver-Aurora border. The company, which for a time was the largest employer in Aurora, made ejection seats for the military and in a few short years nearly doubled its operation to 140,000 square feet, according to History Colorado.