12:00 AM EST
March 21, 2013
Cleveland Metroparks Zoo celebrated two straight decades of more than 1 million annual visitors in 2012. Given the ability to wander an indoor rain forest and 165 outdoor acres, it should surprise no one the seventh-oldest zoo in the United States is such a long-standing favorite. With the summer safari season nearing, we looked into numbers behind the zoo and its million-plus streak.