Ois forOklahoma City
Oklahoma City is the capital of the state of Oklahoma in the United States of America. It has a population of around 1.3 million.
Olympia is the capital of the state of Washington in the United States of America. It has a population of around 46,500.
Omaha is the largest city in Nebraska in the United States of America. It has a population of around 885,000.
Oslo is the capital of Norway. The larger metropolitan area has a population of around 900,000.
Ottawa is the capital of Canada, located in the province of Ontario. It has a population of around 900,000 people.
