The Angono Petroglyphs (Filipino: Mga Petroglipo ng Angono) is the oldest known work of art in the Philippines located in the province of Rizal. There are 127 human and animal figures engraved on the rockwall probably carved during the late Neolithic. These inscriptions clearly show stylized human figures, frogs and lizards, along with other designs that may have depicted other interesting figures but erosion may have caused it to become indistinguishable.