San Pedro y San Pablo College, Mexico City, Church building in Historic downtown, Mexico City.

San Pedro y San Pablo College is a colonial church and former school on San Ildefonso Street in Mexico City's historic center. Its facade mixes Spanish Baroque and Neoclassical elements: two pairs of Doric pilasters flank the portal, a stained-glass window bears UNAM's coat of arms, and a triangular pediment holds a niche with a statue of Athena. Inside, thick buttresses support a handkerchief-vaulted ceiling.

The building was founded in 1574 by Jesuit missionaries and served as an educational institution for nearly 200 years. The expulsion of the Jesuits in 1767 marked a turning point that led to the structure's change in purpose.

The church interior is laid out as a cross, with thick buttresses separating chapels and rising to support a handkerchief-vaulted ceiling. Between 1921 and 1927 José Vasconcelos had it redecorated with early modern murals by Xavier Guerrero and Roberto Montenegro. The facade carries a niche with a statue of Athena above a stained-glass window with the UNAM coat of arms.

The church section, at the corner of San Ildefonso and El Carmen streets, holds the Museum of the Constitutions; the former school wing runs along San Ildefonso to República de Venezuela. The complex belongs to UNAM and the church is a listed INAH monument. The interior follows a cross plan with thick buttresses dividing the chapels.

During the early independence period, the building hosted meetings that contributed to the creation of Mexico's first Federal Constitution in 1824. These gatherings reveal how the structure served as a site of political decision-making during a pivotal moment in Mexican history.