Madison Park is a beautiful oasis in the middle of the Flatiron District. It has all sorts of events going on throughout the year and is home to the Shake Shack ( where there is always a queue ) but I love the park for its art installations. A couple of years ago they featured Roxy Paine’s silver trees which were spectacular, and this year a 44 foot head sculpture by Jaume Plensa is dreamily set in the middle of the Park, changing moods as light and shadow move around it. Walking through the park a couple of weeks ago on a still sultry night, the sculpture was iridescent with light and seemed surreal surrounded by trees with the Empire State Building rising up behind…