Barton made this drawing in Mexico City, at the Academy of San Carlos. Founded in 1785 by Carlos III, king of Spain, it was the first art academy of its kind in the Americas. Since 1791 the academy has inhabited a sixteenth-century building that was previously a hospital. In this drawing of the interior, Barton focused his attention on the Neoclassical plaster casts of ancient sculptures that line the balcony.