Alcatraz was SUCH an informative trip! You can pay to have an audio device (which tells you where to stop and end as you walk through alcatraz) or take the trip of your own. The island is fairly big, so it's quite the fun! You even get to walk in a few of the cells. It can be kind of creepy, but a load of fun! It's not expensive either, so something that's a DEFINETE must in the city of San Francisco!
Pros: Fun, Inexpensive
more