Autumn is in the air, pumpkins are everywhere and so many communities along Route 1 are throwing fabulous, kid-friendly fall festivals and seasonal events this year! So carve out some time and check out these fun (mostly free) fall events happening in Maryland’s Mount Rainier, Brentwood, Bladensburg, Hyattsville, Riverdale Park, College Park, Greenbelt, Laurel, Upper Marlboro and Washington, D.C.