Editor's note: This UNESCO World Heritage Site is located in the heart of a dynamic city with amazing food, making it an easy and low-risk visit (that is, if you don’t enjoy the Alamo, move on to tacos). Every last Texan who fought to defend the Alamo in 1836 died, which is why “Remember the Alamo” later became a rallying cry in the Mexican War. Get a little piece of Texas history via some beautiful Alamo wallpapers!