Wide open park where the famous Rizal Monument is located. Named after the country's National Hero who exemplifies the importance of education and is a perfect example of "fighting with the pen" Awesome place where locals run or exercise in the morning, where students practice Filipino Martial arts in the afternoon.
The Statue of Liberty for New York, The Opera house for Sydney, The Merlion for Singapore, etc It's the quintessential photo spot.
If you do a city tour in Manila to learn about the history of the Philippines, best to visit the park around 3-4pm when the weather is cooler.