I'll add to this, by sharing what I learned at KSC...
"Feel the space race come alive as you stand under the largest rocket ever made--the mighty Saturn V. This monumental 363-foot rocket [its diameter is 33 feet] was America's lunar transportation for 27 brave astronauts who traveled to the moon and back." During the 1st (of 3 stages)... "the five F-1 engines propelled the spacecraft to a speed of 5,000 MPH and consumed fuel at a rate of 15 tons per second. Approximately 2.5 minutes after launch, the engines cut off and the stage was jettisoned into the Atlantic Ocean.