Once the nefarious site of 'Needle Park', it's hard to believe that the leafy oasis behind the beaux-arts New York Public Library building is now bustling with European coffee kiosks, alfresco chess games, summer film screenings and winter ice skating. It's the perfect place for Midtown madness-weary souls to take a break and enjoy a variety of activities, ranging from beginner Italian language classes and yoga to juggling, painting and birding tours.