civic educational St. Mark's Episcopal School Houston, TX St. John's School Athletic Center Houston, TX University of St. Thomas Science Building Houston, TX Lower School, The Kinkaid School Houston, TX The Presbyterian School Houston, TX The Children's Museum Houston, TX healthcare   historic religious St. Mark's Episcopal School 1 2 3 4 Houston, TX This 30,000 S.F. addition to St. Mark's Episcopal Church and School provides a new gymnasium, new classrooms, and new administrative offices. The addition frames the central courtyard and integrates the existing Middle School building into the campus. The "Country Gothic" style of the building reflects the character of the existing Sanctuary and helps tie the campus together.