At the time termed the “most paintable town in the U.S.” by artist Anthony Thieme, St. Augustine drew artists to paint its historic surroundings around the Gilded Age and outside of, said Dulce Roman, main curator and curator of modern day art for the Harn Museum of Art at the College of Florida.  Paintings from artists who stayed at Henry Flagler’s Hotel Ponce de Leon and sold functions showcasing St. Augustine to rich visitors are part of an exhibit at the Governor’s Residence Cultural Center and Museum at 48 King St. in St. Augustine, Ramon explained.  The show, which opened Friday, is cost-free to the general public. Show several hours are 10 a.m. to 5 p.m.…