Caguana Indigenous Ceremonial Park

Built by the Taíno around 1270 AD, Caguana holds the largest concentration of petroglyphs in the Antilles — figures of deities, animals, and astronomical objects carved into the stone monoliths that line ten ceremonial ball courts. The stones, some weighing over a ton, were most likely hauled from the adjacent Tanamá River. The Institute of Puerto Rican Culture manages the site and its museum, which reopened in 2024 with more than 200 archaeological pieces. The site's archaeoastronomical features are recognized by the UNESCO Astronomy and World Heritage Initiative.