The Zweilandermolen is an historic polder mill located near the Vennemeer in the town of Warmond. The mill was built in the first half of the 17th century, to serve the 110 hectare Zweilanderpolder. In 1968, the mill was bought by the Rhineland Mill Foundation. The Zweilandermolen was restored in the year 2000. The Zweilandermolen is open to the public, and tours of the mill can be arranged upon request.