References
World Book p. 15, 1998
www.bluffton.edu/~sullivanm/arctiomphe/arc.html
www.glassteelandstone.com/buildingdetail/123.php
www.aviewoncities.com/paris/louvre.htm
www.aviewoncities.com/paris/parisattractions.htm
www.aviewoncities.com/paris/notredame.htm
http://www.technologystudent.com/struct1/eiffel1.htm
http://www.louvre.fr/llv/musee/alaune.jsp?bmLocale=en