Downtown Dallas museums feature an occasional "late night" where venues are open till midnight with special performances by musicians, dancers, poets and author readings. We happened by the Nasher Sculpture Center and experienced an interactive piece by Martin Creed called Work No. 1190: Half the air in a given space. It's a room filled with approximately 9,000 gold balloon. The people on the left side of the photo are waiting to enter the space. As they exit on the right, wranglers keep the spheres from escaping.