While famous for its vinegar, racing cars, and tenors, it's the Romanesque Duomo and Torre that land Modena on the World Heritage List. They are considered to be among the finest examples of this period of architecture in Italy and justifiable so. Decorated with impressive reliefs along the facade and around the numerous doors, the Duomo is a 11th/12th century masterpiece, with most of the credit due to one Wiligelmus, a sculptor about whom still little is known. The Torre Ghirlandina is famous for its role in the centuries old rivalry between Modena and Bologna, involving the theft of a notorious and much-coveted wooden bucket. It is also notable for its beauty and its very obvious lean.