I'm flying in around 8am on a Monday and have the day to spend before heading to Iguazu Falls. Probably not til 11(?) or so I'd be out of the airport and have bags dropped at hotel. I'm staying at Reino Del Plata Boutique Hotel. I enjoy history, culture, cemeteries, sports, general tours, etc, but have no interest in tango or Evita. Would appreciate advice as to a couple of things I should do with my limited time. Thanks!