Explorers
http://www.enchantedlearning.com/explorers/indexa.shtml
Use this site to learn about famous explorers such as Columbus, Ponce de Leon, Jacques Cartier, and Christopher newport

Explorers of the Millennium
http://library.thinkquest.org/4034/hall_of_fame.html
Think Quest provides easy way for students to access a wealth of information about important world explorers