With the capacity to seat up to 4,000 people, the Jehovah's Witness Assembly Hall in Romeoville serves as a meeting place for Jehovah's Witnesses from throughout northern Illinois. Each weekend, it welcomes members of roughly 20 Kingdom Halls from throughout the state. Services are offered in languages including Spanish, Korean and Polish. The church focuses on family-0riented religious education and evangelism, with members going from city to city and door-to-door distributing Bible-based publications.