Cities These are not all the cities in the world, just the ones that hold hands with SFO Museum
Olbia (IT)
Orly (FR)
Otopeni (RO)
Ottawa (CA)
Oude Meer (NL)
Palma de Mallorca (ES)
Palmdale (US)
Panamá (PA)
Papeete (PF)
Paradise (US)
Paramaribo (SR)
Paray-Vieille-Poste (FR)