Explore the History of this artwork.
The Port Authority allocated up to 1% of the World Trade Center construction cost to the purchase of art for the complex, and established an advisory group to recommend and commission artwork.Completed in 1972, Cloud Fortress occupied a minor plaza between buildings 4 and 5 that gave access from Church Street to the large Austin J. Tobin Plaza central to the complex of World Trade Center buildings. 
The sculpture survived the immediate attacks and collapse of the adjacent buildings, but was demolished several days later by emergency efforts to access and clear the site and provide a stable area for heavy machinery to further access Austin J. Tobin Plaza. Following the sculpture's demolition, it's remains were removed from Ground Zero along with the rest of the rubble.
World Trade Center Austin J. Tobin 4 Church Street collapse Port Authority 5