The winding streets of the Old Quarter lead to the Catedral, a national art treasure that dominates the zona monumental. The acropolis-like cathedral/fortress, built in 1170, wasn't used for religious purposes until the early 13th century. Later architects respected the original Romanesque and Gothic styles and didn't make changes in its design. If you have time, you may want to visit the Romanesque-style Iglesia de San Bartolomé on the outskirts of town, and the Iglesia de Santo Domingo, a beautiful example of Gothic style. (Look for the bas-reliefs in the cloister.) The churches are open to the public in summer. The latter church stands next to Santo Domingo Park. Walls built over Roman fortifications surround Túy.
