Image by Witold Skrypczak Getty Images
The 17th-century Iglesia de Jesús was built by Jesuits in 1618. It's the sole surviving edifice from a complex of buildings that once filled the entire city block. The church was built from the stones of a destroyed Maya temple that occupied the same site. On the west wall facing Parque Hidalgo, look closely and you can see two stones still bearing Maya carvings.