Museum staff members called riggers used "rigs," or small cranes, to put the parts of the sculptures together. They do this under the close supervision of a curator (the Museum staff person who studies and cares for the art, and who plans exhibitions), designers, and in this case the artists, Claes Oldenburg and Coosje van Bruggen. Click on the photographs to your left to see how Corridor Pin, Blue was assembled.

Food for thought: Can you think of other ways we could have gotten the sculptures on the roof?