| Intriguing acoustic effects have also been noted at sites in the Americas, from Anasazi kivas in New Mexico, to Chichen Itza on Mexico's Yucatan peninsula. |
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| Ultimately, this evidence is used in a re-evaluation of the mul tepal hypothesis that has dominated the view on rulership at Chichen Itza. |
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| During this period, known as the Terminal Classic, the northern cities of Chichen Itza and Uxmal showed increased activity. |
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| The Maya city of Chichen Itza and the distant Toltec capital of Tula had an especially close relationship. |
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| After the decline of Chichen Itza, the Maya region lacked a dominant power until the rise of the city of Mayapan in the 12th century. |
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| Chichen Itza and its Puuc neighbours declined dramatically in the 11th century, and this may represent the final episode of Classic Period collapse. |
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| The Postclassic period saw the rise of Chichen Itza in the north, and the expansion of the aggressive K'iche' kingdom in the Guatemalan Highlands. |
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