You can shut out the hum of Interstate 20 in the distance and pretend you're ensconced in an urban prairie wilderness at Cedar Hill State Park, situated on Joe Pool Lake. Some parts of the 1,800-acre park, such as historic Penn Farm, have swaths of prairie grass like the area's earliest settlers would have found. The biggest attraction here, though, is the more than 350 wooded campsites, perfect for a quick retreat from city life. The state park also features mountain bike and hiking trails, swimming in Joe Pool Lake and fishing, which is free with state park admission. (Not that we've ever caught anything.) Oh, and the occasional tarantula or scorpion.