From an insane 1955 Look magazine article which suggested that the future of aviation might be subterranean and saucer-shaped:

Future airports built for vertically rising flying saucers would have no need of the long, vulnerable runways today’s fighters require. The complete operation could go underground. Tunnels with take-off shafts set into the ground, complete with maintenance bays, fuel and crew quarters, would be bombproof shelters for a saucer squadron. The shafts would be sealed after take-off for camouflage and protection.•