Images of Greece, Rome, and Egypt found on http:/library.thinkquest.org/TQ0311204
fromGreat Buildings.Com,
http://www.greatbuildings.com/buildings/, License Department,
rights@artifice.com, Email
James, Simon; Ancient Rome; Alfred A. Knopf, Inc.; New York; 1990; pp. 28-29
Schofield, Louise, Ed.; Ancient Greece; Time Life Books; San Francisco; 1997; pp. 48-49, 39-42
Lesko, H. Leonard; Ancient Egypt; World Book, Inc.; Chicago; 2001; p. 137
Academic American Encyclopedia CIT-CZ; Grolier, Inc.; Phillipines; 1992; pp. 122-123
Guardians Egypt; Andrew Buyuk; http//www.guardians.net; 12-10-02
The Great Wall of China; Billy Char, Jackie Chan, Paul Yeung; http://www.londonccnc.ca/chinese_school/greatwall/GW_History.htm,12/10/02.
The Great Wall of China; http://www.central.K12.ca.us/akars/greatwall.htm, 12/10/02.
Enchanted Learning Software; http:/www.enchantedlearning.com/subject/greatwall/All about.html, 12/10/02
Introduction to Chinese Ancient Architecture for beginers; http://www.chinatravel.com/china/architec.html, 12/7/02.
The Buildings for Athletics in Ancient Greece and Rome;Tracy Sibberson;http//gozups.uakron.edu/Tracy4/idex.html;spring 1990;Dec.2003
Rene Seindel,Ellie Crystal;Ellie Crystal's Metaphysical and Science Website;http:// www.crystalinks.com/greekarchitecture.html;Jan,2003
Darlene Bishop,DianaEggers;Ancient Rome;http://www.kent.k12.wa.us/curriculum/soc_studies/rome/Rome.html;Nov.2002