The most popular attraction at Binder Park Zoo, in Battle Creek, Michigan, seems to be Wild Africa, a 50-acre expansion that showcases animals in their natural settings, including a 17-acre open savanna. Stroll the boardwalk to spot zebra, kudu and other exotic critters, including one of the largest giraffe herds in North America. In what has to be the world's tallest petting zoo, you can even hand-feed the giraffes.