This single-nave church and its adjacent former monastery dominate the east side of Plaza Hidalgo. First erected in 1592 by the Franciscan order, the Parroquia de San Juan Bautista has a lavishly ornamented interior, with painted scenes all over the vaulted ceiling. Be sure to inspect the cloister, featuring Tuscan columns and a checkerboard of carved relief panels on the corner ceilings.