I like making hindering terrain, it is easy and fun! All I need is a set of squares as a base and random "trash" and lots of glue. These were designed for the city, to look like trashed streets. They also work for a farm set, since I know of some farms that have "trash" piles. I made the doors to the closet in the bedroom of the farm set too big, so they made great "trash" on these piles. Cut off ladders are also in here. The building ladder access hole (on the inside of the building) is the tome stone looking piece, the square pieces are the cutout from the windows. There are a lot of my mess ups in here and extra sections that get cut out.