The phrase "go big" isn't one the city of Dallas takes lightly. Ever. For instance, if you go to the Dallas Sports Festival - being held at the Kay Bailey Hutchison Convention Center through July 8 - you will see four of those 'BIG' signs. That's inside one building.Granted the Convention Center is large (2,000,000 square feet according to its website), but it's got to be in order to house what the Dallas Sports Commission is putting on - a multi-sport Olympic festival complete with men's volleyball, fencing, and boxing.