Between Winslow and Winona, three miles east of Two Guns and six miles south of I-40 exit 233, sits Meteor Crater (928/289-2362, daily, $18), Arizona’s second-most-distinctive hole in the ground. Formed by a meteorite some 50,000 years ago and measuring more than 550 feet deep and nearly a mile across, the crater is a privately owned tourist attraction. The Astronaut Wall of Fame plays up the crater’s resemblance to the surface of the moon (Apollo moon-walkers practiced here). You can’t climb down into it, but (weather permitting) you can join a guided rim tour, walking a half mile there and back across the desert to gaze down into the crater.