The Sint Martinus Mill is a non-working corn mill located on Wilhelminastraat in the town of Didam. The mill was built in 1855, and has had several owners. Some restoration work was done in 1963, and in 1980, but the mill has been idle for a very long time. Extensive restoration work began in 2007, and it is hoped that the mill will be restored to working order once the work is completed.