


The Philadelphia Zoo, the first zoo in the United States, is still one of the best. Big, small, awe-inspiring and quirky animals fill the zoo’s 42 acres, and the tree-lined walks, formal shrubbery, ornate iron cages and animal sculptures make for an enjoyable stroll. In addition to its animals, the zoo is known for its historic architecture, botanical collections of more than 500 plant species and groundbreaking research.