PBS
Pbs: People & Discoveries Niels Bohr
A wonderful PBS biography of a great man. This contains many personal touches, yet does a fine job of describing Bohr's scientific work. But it's best at Bohr the man. Nice quotes, one in the middle, one at the end.
PBS
Pbs: The u.s. Mexico Border a History
This site has complete information about the U.S.-Mexico border. It has an interactive timeline of important border events and a morphing map that shows changes in the border.