1: Gate 2: Community 3: Boarding 4: Media 5: Departure gate 6: Billboard 7: Lobby 8: Swiss Alps 9: Chippewa Valley Regional Airport 10: Rahim Yar Khan 11: Airport 12: Rosario 13: River Walk 14: Saint Petersburg 15: Esler Field Airport 16: Pattaya 17: Panama Canal Expansion 18: Spartanburg，SC 19: Mangrove Forest 20: Bahamas，The (As of 10:39)
CDD --->Cooling Degree-Day
See also Heating Degree-Day (HDD).
A list of books about the topic CDD
