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Look online to find schedules for free walking tours. You can also find audio and written self-guided tours online. Tours are great if you want to learn about the bridge's history or want help identifying iconic sights. Extended platforms span across the bridge's 2 central towers. These are the best spots to take photographs, since the pedestrian walkway's narrow lanes don't offer much room to stop. You'll also find engraved plaques with information about the bridge's history and the sights visible from the promenade. Since it's tough to stop in the narrow walking lanes, the towers' extended platforms are perfect spots to rest. Take rest breaks at the 2 towers if you or anyone in your group might have trouble walking over 1 mile (1.6 km) nonstop. If you need to sit, there are benches at the towers and along the route. The bridge spans 1.3 miles (2.1 km), and you might work up an appetite on your hike. There are plenty of restaurant options on both sides, so grab a slice of New York-style pizza, savor a glass of wine, or indulge in an ice cream sundae. Before walking back or heading to the subway, take a tour of City Hall, explore the Financial District, or wander north to Chinatown. Other attractions within walking distance include  Battery Park, the Freedom Tower's observation deck, and the Woolworth Building, which is one of America's architectural treasures. On the Brooklyn side, check out the eclectic Brooklyn Heights and Dumbo (Down Under Manhattan Bridge Overpass) neighborhoods. They're packed with restaurants, shops, street art, and other vibrant attractions. Brooklyn Bridge Park is the perfect spot to lounge and admire the gorgeous bridge you've just crossed. You could also take a spin on the nearby Jane's Carousel or peruse the many nearby art galleries.

Summary:
Take a guided tour to learn about the bridge's history. Take photographs at the bridge's towers. Rest at the towers if you're crossing with kids or the elderly. Grab a snack, drinks, or a meal when you reach the other side. Check out lower Manhattan if you walked from Brooklyn. Explore Brooklyn Heights and Dumbo if you came from Manhattan.