Acueducto de Querétaro (Los Arcos)

The Acueducto de Querétaro, popularly known as Los Arcos, is a 74-arch stone aqueduct stretching roughly 1,280 meters across the eastern edge of the city, completed in 1738 under the patronage of Juan Antonio de Urrutia y Arana, Marqués del Villar del Águila. Built during the height of Querétaro's growth as a colonial textile and commercial center, the aqueduct was constructed to carry spring water from the Cañada area to public fountains in the city center, solving chronic water shortages that had constrained the city's expansion. The structure's arches rise to roughly 23 meters at their tallest point, built in dressed quarry stone using colonial engineering techniques adapted from Roman aqueduct principles, and the aqueduct remained in functional use supplying the city for close to two centuries before modern piped water systems replaced it. Unlike a museum, the aqueduct has no curated interior displays; its significance is architectural and civic rather than exhibited, and it is best understood by walking or driving alongside the full run of surviving arches along the Calzada de los Arcos. Sections of the original structure have been lost to urban development over the centuries, but a substantial run of arches remains intact and forms a protected historic monument. Restoration efforts have focused on structural stabilization and cleaning of the stonework, with the aqueduct now illuminated at night as a civic landmark and integrated into surrounding parkland and walking paths rather than isolated behind fencing.