The Menlo Gas Station man casts a warm red glow that can be seen for miles down old US Highway 6 in Menlo Iowa. The White Rose Oil Company mascot was built in 1934 for the Harry Kalbach service station in Menlo. Twice the length of Rt 66, US Highway 6 is the longest highway ever created in America. This but one of the many roadside attractions along Historic Route 6 in Iowa.