Fairfax County. It’s not as nighttime cool as its pseudo-urban neighbor Arlington County and lacks the Redskins players population of nearby Loudon County, but it is the most populous county in the state. So there’s that. But none of that matters to kids who just know it as chock full of playgrounds, splashpads and a real, live space shuttle (inside the Smithsonian’s Steven F. Udvar-Hazy Center). Here are 13 signs that you’ve got a little Fairfaxian on your hands.