Within Washington Square lies The Tomb of the Unknown Soldier of the American Revolution. The city's colonial past is still apparent, but nowadays Philadelphia is a modern city, with plenty of art, shopping and culture. Do as locals do and explore the city by bike or public transport, or hop on and off a sightseeing bus. Fairmount Park is the city's public backyard. It's great for a walk and it showcases many architectural treasures. Admire outdoor art on the Benjamin Franklin Parkway, or check out the Smith Memorial Arch, dedicated to the military heroes of the Civil War. Strike Rocky's pose on the steps of the Philadelphia Museum of Art. Set upon a hill, the neoclassical building is one of the largest museums in the country. It has over 200 themed galleries displaying nearly 230,000 paintings, sculptures, and objects. The Please Touch Museum means play time for the kids. Even toddlers will love this hands-on museum, where they are never hushed. Who doesn't want to get lost in Wonderland for a while? The interactive displays in the museum are fun and educational. Children can also learn a great deal in the Academy of Natural Sciences on Logan Square. Admire the displays of the various species that roam the far North and take the opportunity to pet live animals. For more interaction with animals visit the Philadelphia Zoo across the river. Imitate the monkeys, encounter big birds, or admire any of the other wild residents of America's oldest zoo.