NEW YORK, NY – APRIL 10: A nanny pushes a double baby stroller through Central Park, on April 10, 2013 in New York, New York. People enjoy running, cycling, walking and playing in the park. Central Park was designed by landscape architect Frederick Law Olmstead in 1858, and covers 843 acres. Today, millions of people a year enjoy the park. It is the most visited urban park in the US. (Photo by Melanie Stetson Freeman/The Christian Science Monitor via Getty Images)
