Route 66 turns 100 this year, and communities across California are marking the milestone with festivals, food and road trips throughout the spring and summer. For travelers looking to celebrate, the best way to experience the centennial is simple. Get in your car and hit the Mother Road. SoCal’s Route 66 centennial party kicks off April 25 in Glendora with the Vibechella Music Festival, before rolling into Santa Monica on April 30 for the official Centennial Kick-Off at Mel’s Drive-In and