"Cradle," a permanent artwork measuring 39 ft. wide and 36 ft. high by Ball Nogues Studio, was installed on the east wall of the city's Parking Structure 7 on 4th Street between Broadway and Colorado on Tuesday, July 27, 2010.

An aggregation of mirror polished stainless steel spheres, the sculpture operates structurally like an enormous Newton’s Cradle - the ubiquitous toy found on the desktops of corporate executives. Each ball is suspended by a cable from a point on the wall and locked in position by a combination of gravity and neighboring balls. As a whole, the balls imply an articulated surface suggestive of foam or sea life.