This photograph shows a terraced series of masonry water basins built into a hillside near Manila, likely part of the Carriedo Waterworks system at Santolan, completed in 1882 to supply the city with piped water. Engineered by the Spanish colonial government, this waterworks represented one of the most significant public works projects in the late 19th-century Philippines, and portions of the system remain in use to this day as a testament to period civil engineering. Project: 218497