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• Pyramids (The Americas) - MSN Encarta

  Pyramids The Americas, large structures with four stepped sides and a flat top, built in Mexico and Central and South America from about 3000 bc to...

• The Americas' Oldest Pyramids, Cities

  Archaeologists say Peru was home to the Americas' earliest known urban settlements and pyramids, dating as far back as 2627 B.C.

• DLIST - America's pyramids: Presidents and their libraries

  This article explores the history, purpose and perspectives about the United States Presidential Libraries: and sections include how presidential papers before presidential ...