Central Illinois' premier meeting destination, the Thelma Keller Convention Center, offers today's meeting/event/wedding planners a relaxed atmosphere, quality service and tempting cuisine designed to make every event impressive and productive. No matter what size event you are planning, they have room for your needs. Deluxe conference facilities. Impeccable service. Dedicated staff. On-site technical and meeting planning resources. The Convention Center offers over 20,000 square feet of space with a grand ballroom measuring 10,500 square feet. Perfect for your next meeting or a beautiful wedding here.