Waltham High School Posted on May 17, 2017 by admin [{"latlong":["42.3945584"," -71.23050209999997"],"zoom":"16","infow":"<div class=\"ecwd_map_venue\"><span class=\"name\">Waltham High School<\/span><br \/><span class=\"location\">617 Lexington St, Waltham, MA 02452, USA<\/span><\/div>"}]