Antioch Missionary Baptist Church is a historic Baptist church at 313 Robin Street in Downtown Houston, Texas. It was historically a part of the Fourth Ward. As of 2012 it was the only remaining piece of the original Fourth Ward east of Interstate 45. Former slaves organized Houston's first African-American Baptist congregation in January 1866. They initially held services outdoors in the "Brush Arbor" along Buffalo Bayou. The congregation built its first sanctuary in 1867 at the corner of Bagby and Rusk. It was built in 1875 and added to the National Register of Historic Places in 1976.