If you're really short on time and just passing through the northwest part of NM, stop in at the Aztec Ruins. They aren't ruins of Aztec Indians, just in the town of Aztec. If you're driving up from Albuquerque to Silverton, you pass right through the town of Aztec. The ruins are just a few blocks off the main road with a visitor's center and museum to check out. You can easily see it in a couple hours. The ruins are an ancestral Puebloan site, just like most of the other abandoned ruins sites in the Four Corners area.