US Government Publishing Office
Ben's Guide to u.s. Government: Symbols of u.s. Government: The Liberty Bell (3 5)
Offers historical background information on our national symbol of freedom, the Liberty Bell, which still hangs in Philadelphia today and is rung each July 4th.
Independence Hall Association
U.s. History: The Liberty Bell
Use this site to find out many facts about the Liberty Bell: the size, composition, and location of the bell, as well as history, facts, trivia, and photos.
NASA
Nasa: Liberty Bell Tolls
This site from NASA provides a detailed description of the second flight of a Mercury spacecraft and the second American to travel in space.