Fodor's Expert Review Meteor Crater

A natural phenomenon in a privately owned park 43 miles east of Flagstaff, Meteor Crater is impressive if for no other reason than its sheer size. A hole in the ground 600 feet deep, nearly 1 mile across, and more than 3 miles in circumference, Meteor Crater is large enough to accommodate the Washington Monument or 20 football fields. It was created by a meteorite crash 49,000 years ago.

You can't descend into the crater because of the efforts of its owners to maintain its condition—scientists consider this to be the best-preserved crater on Earth—but guided rim tours give useful background information, and telescopes along the rim offer you a closer look. There's a restaurant on-site, and the gift shop sells specimens from the area and jewelry made from native stones.