This weekend marks the opening of the 3 month long Chicago Architecture Biennial. With a mission of creating an international forum on architecture and urbanism, the Biennial “seeks to convene the world’s leading practitioners, theorists, and commentators in the field of architecture and urbanism to explore, debate, and demonstrate the significance of architecture to contemporary society.” The calendar is overflowing with events, including free tours of the Frank Lloyd Wright’s S.C. Johnson Wax headquarters and the UChicago campus, as well as the opening of the Stony Island Arts Bank, all happening this weekend.