"SKYLON TOWER FACTS"
"Total height of tower: 520 feet (160 metres)
Height of tower above maid of the mist pool: 800 feet (236 metres)
Weight of concrete for tower: 48,000,000 lbs (21,772,800 kg)
Number of steps from base to top: 662
Visibility on a clear day: 80 miles (129 km)"