Washington State University
Washington State University: Architecture in the Italian Renaissance
This site contains information on how Italian Renaissance architecture found its roots in the ancient world, the principles it rested on, and some key figures in its development.
Other
Cupola: St. Peter's
On the oddly specific Cupola.com's page, you can scroll down to St. Peter's Basilica and find a few pictures of the dome.
Other
St. Peter's in the Vatican Basilca
Picture of St. Peters and a very brief description which coins the basilica as "the greatest church of Christendom.
Web Gallery of Art
Web Gallery of Art: Dome at St. Peter's
This site, which is provided for by the Web Gallery of Art, gives a brief description of the dome at St. Peter's as well as providing a picture.
The National Gallery (UK)
National Gallery: Pope Julius Ii
Portrait of Pope Julius II by Raphael. The website includes a very short description of Pope Julius II's accomplishments as pope and information on the portrait. Thumbnail can be enlarged for viewing purposes.