This West Jackson building harvests (stores, collects, and reuses) 30,000 gallons of rainwater annually. Which building is it?

1). Jackson Convention Center
2). Metro Center Mall
3). College of Engineering, Science & Technology @ JSU
4). One University Place

Answer revealed at 4 p.m. The first person to answer the question correctly (on FB or the blog) will win a gift card to Koinonia Coffee House.