 | (Left) The Observatory at Chichen Itza provides sight lines to the setting of Venus, the solstices and equinoxes. Were the Mayans heir to an advanced astronomical knowledge? (Right) The step pyramid of Quetzalcoatl/Kukulkan at Chichen Itza, a monument to the feathered Serpent. |  |
 |  | (Far left) The cult of death - the gruesome face of MesoAmerican sacrifice. (Left) The monuments of Uxmal, according to Stansbury Hagar, are terrestrial counterparts of the zodiac. |
(Right) The 'House of the Pigeons', Uxmal, correlated by Hagar with the zodiacal constellation of Taurus. (Far right) The Central Ball Court, representing the constellation of Leo in the sky-ground scheme of Uxmal. |  |  |
 | (Left) The façade of the House of the Governor, Uxmal - a terrestrial counterpart to Gemini. | |