1M Cities Starting with O

How many cities with a population >1 million that start with letter O can you name? You've been given countries where they're located as a clue.
population measured by urban area
Quiz by RoxyTheQuizzer
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Last updated: June 13, 2019
First submittedJune 13, 2019
Times taken162
Average score72.7%
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City
Country
Odessa
Ukraine
Okayama
Japan
Oklahoma City
United States
Omsk
Russia
Onitsha
Nigeria
Oran
Algeria
Orlando
United States
Osaka
Japan
Oslo
Norway
Ottawa
Canada
Ouagadougou
Burkina Faso
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