Ancient Observatories, Timeless Knowledge
http://sunearthday.nasa.gov/
Check out this great site from our partners at NASA's Sun-Earth Day. It has a nice overview of astronomically aligned sites from around the world, an interactive timeline, and great teacher resources.

Instituto National de Anthropologia e Historia (INAH)
http://www.inah.gob.mx/
The Mexican government's anthropology bureau offers this Web site in both English and Spanish. It includes information on the historical sites, museums, and archeologically important regions in Mexico.

Unmasking the Maya: The Story of Sna Jtz'ibajom
http://www.mnh.si.edu/anthro/maya/
The Smithsonian Institute's Department of Anthropology presents information about the modern Maya and the struggles faced by Maya in the southern state of Chiapas.

Was Maya Pyramid Designed to Chirp Like a Bird?
http://news.nationalgeographic.com/news/2002/12/
1206_021206_TVMayanTemple.html
National Geographic story about the unusual acoustics of El Castillo: echoes that sound like the chirping of a quetzal.

Read more about this phenomenon from the Acoustical Society of America:
http://www.ocasa.org/MayanPyramid.htm

Harvard’s Peabody Museum Collection
http://www.peabody.harvard.edu/col/shortDisplay.cfm?StartRow=1
Harvard’s Peabody Museum has a vast collection of artifacts from the Yucatan, including all of the artifacts dredged from the Sacred Cenote at Chichén Itzá.

Maya Adventure
http://www.smm.org/sln/ma/sites.html#topicci
The Science Museum of Minnesota presents information on Mayan sites, architecture, and cenotes .

Maya World Studies Center: Welcome to the Maya Calendar
http://www.mayacalendar.com/mayacalendar.html
A great site about the Mayan calendar, the center of Mayan life.

Mesoweb’s Chichén Itzá
http://www.mesoweb.com/chichen/index.html
This site explores in detail the inscriptions at Chichén Itzá and also presents a virtual tour and very nice 3-D renderings of what the architecture might have looked like when first built.

Chichén Itzá Facts
http://www.chichenitzafacts.com/
A nice concise site with info about Chichén Itzá

Links in Spanish

Universum
A partner on this project, Universum is a great hands-on science museum in Mexico City.
http://www.universum.unam.mx/

Instituto National de Anthropologia e Historia (INAH)
http://www.inah.gob.mx/
This site from the INAH gives a good overview of the archeological sites in the Yucatán (and throughout Mexico).