Godolphin Arabian
Skyscraper's sire was Highflyer (1774), an undefeated racehorse who became the greatest stallion of his time. His grandsire was the noble Herod, the foundation sire through whom Skyscraper was in the direct male line of the Byerley Turk, while his granddam was Rachel, whose grandsire was the Godolphin Arabian.