In its heyday from about A.D. 300 to 900, the Maya civilization boasted hundreds of cities across a vast swath of Central America. Now archeological sites, these once-flourishing cities extended from Chichén Itzá in the northern Yucatán to Copán, about 400 miles to the south in modern-day Honduras. Each bore ceremonial centers where theocratic rulers practiced a complex religion based on a host of gods, a unique calendar, and ceremonies that featured a ball game and human sacrifice. The ancient Maya also mastered astronomy, mathematics, art and architecture, and a glyph system of writing on stone, ceramics, and paper. Using the labels on or below the map below, visit 15 of the better-known Maya sites.

Source: http://www.pbs.org/wgbh/nova/maya/worl_sans1_01.html