The Alamo - A piece of history
I can't imagine going to San Antonio, and not visiting the Alamo. This is a huge piece of American history. You can spend hours reading about all the things that happened here. It's also FREE! Try to go down there when the musuem in the barracks is open. You have all kinds of neat artifacts like old uniforms, swords, muskets, knives, etc. There is even a short movie they show you about the history of the Alamo! This is for sure a MUST SEE.