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
Sacred Places: St. Peter's Basilica
A description of the creation of St. Peter's Basilica. Information includes how it was erected and why the site was chosen.
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.
Other
Abc Roma Monuments in Rome St. Peter's Basilica
Brief article on the architectural value of St. Peter's Basilica, "the greatest church in the world."
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.
Global Catholic Network
Global Catholic Network: Passing Through St. Peter's Basilica
A visual tour of St. Peter's Basilica without text.