This elegant, weathered sandstone cathedral, begun in 1165, towers over the historic centre. Of particular interest are the Puerta de las Cadenas, with splendid Gothic reliefs of Old Testament figures; the elegant Pórtico del Perdón; and inside, the exquisite, carved-oak choir stalls. You can also climb the 142-step tower at 1.15pm on Saturday and Sunday; the views are Ciudad Rodrigo's best.
The museum contains religious paintings and objects from the cathedral's history.