Aéropostale has turned up the retail wattage in Manhattan’s Times Square, opening a global flagship in the heart of the tourist Mecca. The two-level, 19,000-sq.-ft. space — the teen retailer’s largest store yet — is designed to raise the chain’s profile and serve as a platform for its international expansion. The company is on track to have 50 stores in Canada and 10 in Dubai by year’s end.