The Alamo is a historic site located in San Antonio, Texas. Originally a Spanish mission, it became famous for the 1836 battle during the Texas Revolution, where a small group of Texan defenders fought against the Mexican army. The battle lasted 13 days and ended with the fall of the Alamo, but it became a symbol of resistance and bravery. Today, the Alamo is a museum and a popular tourist destination, attracting millions of visitors each year. It serves as a reminder of the struggle for independence and the importance of the Texas Revolution in American history.