The massive, red-brick structure at the northwest tip of the hill is the remains of the Tartu Cathedral, which dates to the late 13th Century when Tartu was a bishopric. It was heavily damaged during the Livonian War and finally finished off by fire in 1624. In 1804, with the reopening of the university, the choir end of the cathedral was rebuilt into a library. Now it houses the University of Tartu Museum. Visitors are welcome to stroll through the cathedral’s columns, to attend open air exhibitions and, in the warmer months, can visit both the renovated towers and the University of Tartu Museum with the same ticket. At night, the cathedral is beautifully illuminated.