Alcatraz N.P., San Francisco
History is what draws people to Alcatraz. Those who say its "boring" are the same morons who would say that "Gettysburg" is just a pretty field.
If ALL you see is burned out buildings then you should have done a little research about the history of the island before watching "The Rock".
Unique Suggestions: Day tours and night tours are interesting in their own ways. Where the day tour has more access to the island, the night tour has less crowds and seeing Alcatraz at night, up close and the surrounding San Francisco Skyline, is magical.
But wear comfortable shoes and dress in layers, be prepared for sudden changes in temp.
Fun Alternatives: Marin Headlands and Angel Island for history buffs.
If you know you want to visit then book online well in advance.
It can be cold, wrap up.
Apart from that, go, enjoy.
Alcatraz!! Be sure to purchase tickets days in advance! It's next to impossible to show up and catch a boat the same day!!!!