In the early 1700s, Spanish catholics built six missions near what is now San Antonio. One to the north was destroyed by Indians and never rebuilt, but five still remain today. The first one built was the Alamo, now the center of San Antonio. San Jose, San Juan, Concepcion, and Espada are preserved as part of San Antonio Missions National Historical Park. Attacked by both Mexicans and Indians, the one remembered today took place on March 6, 1836. On that day, General Antonio de Santa Anna finished the assault overrunning the Alamo. As old as the restored buildings are, mass is still celebrated at four of the five missions today.