PBS
Pbs: Conquistadors: Francisco De Orellana
This site has information on the search for El Dorado and the exploration of Amazonia by Francisco de Orellana. He travelled to the mouth of the Amazon River. The site has plenty of images, maps and video too.
PBS
Pbs: The Conquistadors
A huge website that provides a virtual field trip exploring the Spanish adventurers who quested for gold and land in the New World. The site has information on Pizarro, Orellana, Cabeza de Vaca, Cortes as well as extensive information...
Smithsonian Institution
Smithsonian Education: Impacto, Influencia, Cambio
This multimedia resource provides information about science, technology and invention in Latin America.