The highest building at the airport, a monitoring tower, stands at the southern end of T3. The roof of T3 is red, the Chinese color for good luck. The terminal's ceilings use white strips for decoration and to indicate directions. Under the white strips, the basic color of the ceiling is orange with light to dark tones indicating where a passenger is inside the building. The roof is light orange in the center. The color deepens as the roof extends to the sides in T3E and goes the other way round in T3C.