Thermal conditions at the World Trade Center site as seen from the north. The footprint of 1 World Trade Center (North Tower) is slightly below and to the right of center, and the footprint of World Trade Center 2 (South Tower) is slightly above and to the left. The L-shaped building at bottom left is 5 World Trade Center (Dean Witter Building), and 4 World Trade Center (World Financial Center) is immediately above it. The domes at right are part of the adjacent World Financial Center complex.
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