The park has over a hundred trees of several different types, including rain trees, golden palms, fire trees, "kamuning" and "podocarpus". It contains several public art pieces created by Filipino artists Ovvian Castrillo-Hill and Ral Arrogante. At the northwest corner of the Triangle is a monument to assassinated opposition leader Benigno Aquino Jr., designed by Anastacio Caedo and erected in 1986. Two other monuments can be found on the other corners of the Triangle: the Gabriela Silang monument at the southwest tip erected in 1971, and the Muhammad Kudarat monument at the northeast tip erected in 1973, both designed by sculptor José M. Mendoza.