Delegates of the Pan American Highway Commission visit the United States. Group gathered around the famous Man O' War race horse (then retired) in Kentucky. Close views of Man O' War outside a stable. Visit to the tomb of Abraham Lincoln at Springfield. Delegates with a wreath are gathered at the base of Lincoln's tomb. The Commission views a 2 mile section of roadway called Bates Road which was built as an experiment, ultimately to be destroyed. Views of the dusty Bates Road and vehicles traveling slowly over its rutted roadway.