Marred by several new constructions, the Sint-Agnesbegijnhof, 1km northeast of the centre via Plankstraat, is not an especially memorable begijnhof , but it's unique in that it has retained a begijn farmstead. The central, barnlike 1258 Begijnhofkerk is renowned for a gruesome medieval fresco depicting St Agatha’s martyrdom. While here, visit the Festraets Studio , home to what is billed as the ‘world’s biggest astronomical clock’ (6m high, weighing 4 tonnes).