This elegant black-and-white definitive series issued by Correos de México between 1980 and 1983 celebrates the architectural grandeur of the nation’s colonial heritage.

• 1980 (2.50 peso): Santuario del Sacromonte, Amecameca, Estado de México — a 17th-century pilgrimage site nestled on the slopes of Popocatépetl.

• 1982 (1.60 peso): Colegio de San Pedro y San Pablo, Ciudad de México — one of the earliest Jesuit colleges, later converted into a museum and cultural center.

• 1983 (24 peso): Ex-Convento de Atlatlahucan, Morelos — a majestic Augustinian monastery, part of the UNESCO-recognized Route of the Monasteries on the slopes of Popocatépetl.

All designs were engraved by F. Mercado and printed by T.I.E.V., highlighting Mexico’s commitment to preserving colonial artistry and architecture through philately.