The 12-13C collegiate, with its roof of varnished tiles, saw several changes in the 16 and 19C. The chevet is Romanesque, as is row of arcades in the 15C cloister. A statue of William Farel, who encouraged the people of Neuchâtel to adopt the Reform, stands opposite the main entrance. The nave is in the Gothic style and the cenotaph of the counts of Neufchâtel is a major work of medieval sculpture.