Good question, as you are right, the area is mostly agricultural land. While I am no expert, if you like modern finds, then think parks, campgrounds, scout camps, old schools or churches. If you like older finds, then I would consult a county history to see where older villages or towns may have been located. If there are microfilmed old newspapers, look to see if there is a mention of fairgrounds or a visiting circus. Going further back in time, maybe there was a Spanish encampment, railroad construction temporary housing, a stagecoach route, or an old military installation. As someone wrote, it depends upon what type of finds you are after. But I agree, there is a lot of flat, boring farmland in your new home. Good luck!