(Covers information from the D.C. comics)
The De Gooyer windmill was an historic landmark in Amsterdam. In 1998, the Umbrella Corporation planted zombies in a the top of the building to ambush the rogue Raccoon S.T.A.R.S. survivors. Chris Redfield shot two off the ledge, damaging the landmark.
While the comic's use of trees suggests De Gooyer is out of the city and surrounded by trees, it is in fact in a built-up area. The trees seen in the comic would be where the car park and river are in the real world.