One of your first stops should be Varmlands Viking Center. Here, you'll be able to find your bearings and get some great ideas before you set out exploring.
If you're wondering what to do and see after your visit to Varmlands Viking Center in Varmlands Nysater, you're not short on choice. Check out Von Echstedtska Garden. It's conveniently close to the tourist information center and will give you more insight into what this area is all about.