Grosseto, Italy (GRS-Baccarini)Grozny, Russia (GRV)Grundarfjordur, Iceland (GUU)Guadalajara (and vicinity), Jalisco, MexicoGuadalajara (province), SpainGuadalajara, Jalisco, Mexico (GDL-Don Miguel Hidalgo y Costilla Intl.)Guadelajara, Spain (GDU-Guadalajara-Yebes Train Station)Guadeloupe (islands...