a little taller than a basketball hoop 45.5 km (28.3 mi) Marine Corps Base Quantico , Triangle, Virginia Luton , Bedfordshire Copacabana, New South Wales Uranus 1.63 m (5 ft 4 in) average 8th grade boy 92.2 km (57.3 mi) Aberdeen Proving Ground , Aberdeen, Maryland Waterlooville , Hampshire Bombo, New