2. http://gallery.sjsu.edu/sacrifice/precolumbian.html

3. http://www.britannica.com Olmec ~ Pre Classic Period

4. http://www.history.com/photos/tabasco- mexico/photo4 http://www.britannica.com/search?query=olmec http://www.imagesofanthropology.com/MesoAmerica_Ancient_Sites_page_3.html

5. http://recursos.org/masks/gallery.html http://www.britannica.com

6. Maya ~ Classic Period http://newtravelco.com/top-5-sights-to-see-in-central- america/ http://www.britannica.com

7. http://www.latinamericanstudies.org/maya/ http://archaeology.about.com/b/2011/08/31/itzamn-maya-god-of- creation.htm

8. http://www.flickr.com/photos/drogdon/2630611171/ http://www.mrfs.net/trips/2006/Yucatan/Chichen_ Itza/Chichen_Itza.html

9. http://www.polebio.lrsv.ups-tlse.fr/MAIZEWALL/ http://www.britannica.com

11. http://www.aztec-history.com/moctezuma-ii.html http://sun-nation.org/sun-maya-hunab-ku.html http://www.aztec-history.com/aztec-artifacts.html Aztec ~ Post Classic Period

12. http://www.sheppardsoftware.com/Mexicoweb/factfile/Unique-facts- Mexico8.htm

13. http://www.plu.edu/~westgale/quetzalcoatl/home.html http://www.britannica.com

14. http://www.britishmuseum.org/learning/schools_and_teac hers/resources/all_resources- 1/resource_aztec_empire.aspx http://www.richard-seaman.com/Travel/Mexico/Teotihuacan/index.html http://www.richard-seaman.com/Travel/Mexico/Teotihuacan/index.html

15. http://www.antiquetrader.com/antiques/antiques- americana/museums/the_aztec_world_at_field_museum http://www.mexicolore.co.uk/index.php?&one=azt&two= wus&tab=aus&id=36 http://www.mexicolore.co.uk/index.php?&one=azt&two= wus&tab=aus&id=36

16. Mesoamerican Calendars http://www.britannica.com

17. Nazca http://unmuseum.mus.pa.us/nazca.htm

18. http://www.skepdic.com/nazca.html http://unmuseum.mus.pa.us/nazca.htm

20. How it was done… http://ngm.nationalgeographic.com/2010/03/nasca/nasca-animation

21. http://www.travel-pictures-gallery.com/peru/nazca/nazca-0029.html http://www.metmuseum.org/toah/works-of-art/1994.35.120 https://www.peruadventurestours.com/en/lima/archaeological_tour_of_lima. html http://www.britannica.com