Unearthed: an Aztec pyramid.

• Position: MEXICO - Brief article

Mexico City may be at least a century older than previously thought. Archaeologists recently unearthed the ruins of an 800-year-old Aztec pyramid in the heart of the Mexican capital. The ruins, which are about 36 feet high, were found in the Tlatelolco area of Mexico City--once a religious and political center for the Aztec elite. Since the discovery of another pyramid at the site 15 years ago, historians have thought that the Aztecs founded Tlatelolco in 1325. But the pyramid uncovered in...