On March 6, 1836, the 13-day siege of the Alamo came to a bloody end, and a rallying cry that has echoed through the halls of history was born.

Most Texans know the story - Texas revolutionaries led by James Bowie, William Barrett Travis, and David Crockett - held the former Spanish mission for almost two weeks against overwhelming Mexican forces led by general and dictator Antonio Lopez de Santa Anna.

History and myth have mingled over the years, but the Alamo remains a universal symbol of the struggle against tyranny and the progression of the spirit of individual liberty.

Today, the Alamo is one of the most popular tourist attractions in the world, with over 2.5 million visitors annually.