Ключевые слова: ancient, antique, antiquities, antropologia, antropology, archaeological, archaeology, astronomy, blue, caracol, chichen, chichenitza, city, clouds, color, cycle, el, heritage, inah, indian, itza, maya, mayan, mesoamerican, mexico, moon, observatory, old, prehispanic, pyramid, ruin, ruinas, ruins, sacred, sacrifice, seven, site, sky, spring, stair, stairs, stock, stone, temple, unesco, venus, vertical, wonders, world, yucatan, yucatec,