The former Cistercian and Benedictine nuns abbey complex (polnish: Dawny cystersko-benedyktyński zespół klasztorny)
Built in the 13th/14th c., extended in the19th/20th c. Around 1266, Cistercian nuns lived here, takeover by Benedictine nuns between 1429-1438, and by the Sisters of God’s Mercy St. Vincent à Paulo in 1822. Worthwile visiting are: the abbey with the Mestwin’s Tower (13thc.), the treasury, the gothic underground, the Merseburg Gate and the Brick Gothic, two-storey St. John the Baptist and St. John the Evangelist Church (1290-1330) with the crypt of Abbess Magdalene Mortęska, reformer of Polish Benedictine nuns (can also be visited).