Rising from a carpet of green fields, the monumental arches of Querétaro's great aqueduct march across this hand-colored pre-linen card with quiet, timeless authority — a lone figure in a wide-brimmed sombrero and carrying buckets pauses beneath the soaring stone piers, offering a vivid sense of the structure's enormous scale. Built between 1726 and 1738 under the Marqués de la Villa del Villar del Águila, the aqueduct stretches nearly 1,300 meters and once delivered fresh spring water to the city from the Cerro del Colorado; its 74 arches, some reaching 23 meters high, made it one of the great engineering achievements of colonial New Spain. The colorist has rendered the stonework in warm ochres and the sky in soft aquamarine, lending the scene an almost dreamlike quality typical of the finest Mexican tourist cards of the Díaz era.