April 18, 2018 6:33 pm San Francisco Prepares for 4/20 Celebration at Hippie Hill As thousands of people prepare to light up on April 20, or 4/20, Golden Gate Park’s Hippie Hill in San Francisco gets ready to host its annual event. Christie Smith reports. US & World Videos 0:28 A Vermont state trooper plunges into icy pond to rescue 8-year-old girl 2:59 Keep these travel etiquette tips in mind this holiday season 2:20 Bodies of Missing Men Found in Rubber Bins Inside Storage Unit 1:42 Hundreds of Golden Retrievers Walk a Mile for the Official Boston Marathon Dog 1:51 Typewriter Shop Owner Receives Gift From Tom Hanks