National Geographic : 1936 Nov
© National Geographic Society Painting byH.M.Herget FROM A FROWNING GARGOYLED TURRET MAYA ASTRONOMERS PEERED AT TIHE SKY In mathematics and astronomy the Maya surpassed the ancient Egyptians and Babylonians. This round tower, theCaracol atChichen Itza, was the most important astronomical observatory in all Yucatan. Narrow openings through the thick walls to the circle ofwindows near thetopformed "lines of sight," or lensless telescopes. Through these, observers watched the heavenly bodies which enabled themto fixthedate (Color Plate XII).