Seen here in the late 1930s, Robert Wadlow (1918-1940), stood 8 feet 11 inches and weighed 491 pounds.
https://www.youtube.com/watch?v=60xRolaB2dU
Tragic death at age 22 due to going septic from a wound caused by a leg brace. SO TALL!
My fear of being that tall would be falling over.