 Completed in 1988 at a cost of $60 million, the Atrium was originally connected to the World Trade Center via a pedestrian bridge that spanned West Street.The Atrium was severely damaged in the September 11, 2001 attacks as almost all the glass panes were blown out by the dust clouds and debris caused by the collapse of the World Trade Center, but was rebuilt during the first year of the Financial Center's recovery.Reconstruction of the Winter Garden required 2,000 panes of glass, 60,000 square feet (5,400 m²) of marble flooring and stairs, and sixteen Washingtonia robusta palm trees at a cost of $50 million.