HOLE EARTH Meteor Crater

AS holes go, the one off Interstate 40 a short drive from Flagstaff is a whopper. From a distance it's a mere blip on the horizon, its rim rising 150 feet above the flat scrubland that dominates much of northern Arizona. But that rim hides a yawning expanse — more bowl than hole, really — 4,100 feet across and 550 feet deep. If they played a football game in the bottom, the sides could hold two million fans, give or take a luxury box or two.