May 25, 2016 6:20 pm Time Lapse: 37,000 American Flags Placed on Boston Common Time-lapse footage shows the hours-long effort to place 37,000 American flags on Boston Common Wednesday afternoon ahead of Memorial Day Weekend. US & World Videos 1:35 Understanding the Biden administration's plans to reclassify marijuana 1:45 NYPD enters Columbia University in riot gear to clear protest 4:28 ‘Apples Never Fall' and ‘Jurassic Park' star Sam Neill reveals his real name 3:21 Katy Perry's surprising regret about cheeseburger Met Gala look 2:28 King Charles returns to public duties amid cancer diagnosis