[Henry Druding, the Senior Resident Engineer of World Trade Center, with objects found at site.]

Site of the World Trade Center to be Built by the Port of New York Authority in Lower Manhattan.

World Trade Center: Outstanding Civil Engineering Achievement

[George Willig at top of World Trade Center.]

[Objects found in the excavation of the World Trade Center site.]

[Aerial view of the World Trade Center construction site.]

[World Trade Center under construction.]

[World Trade Center under construction.]

[World Trade Center under construction.]

[Aerial view of construction of the World Trade Center.]

[Workers at the World Trade Center construction site.]

[World Trade Center site under construction.]

[World Trade Center construction site.]

[World Trade Center construction site.]

[World Trade Center under construction.]

[World Trade Center construction site.]

[Aerial view of World Trade Center construction site with numbers.]

[Aerial view of the World Trade Center site.]

[Aerial view of the World Trade Center construction site.]

World Trade Center