Keep scrolling down for answers and more stats ...
1.
Mumbai
Delhi: 31.3M
Manila: 26.3M
Mumbai: 25.6M
Seoul: 25M
Dhaka: 20.3M
2.
Bangkok
Mexico City: 24.5M
New York City: 21.8M
Bangkok: 19.4M
Los Angeles: 17.6M
London: 14.8M
3.
Kinshasa
Sao Paulo: 22.6M
Buenos Aires: 16.6M
Kinshasa: 13.9M
Rio de Janeiro: 13.3M
Lima: 11.1M
4.
Xiamen
Paris: 11.4M
Xiamen: 10.2M
Chicago: 9.65M
Washington: 8.55M
San Francisco: 7.75M
5.
Khartoum
Los Angeles: 17.6M
Houston: 6.8M
Khartoum: 6.5M
Miami: 6.35M
Seattle: 4.475M
6.
Melbourne (Australia)
Shanghai: 34.1M
Hong Kong: 7.55M
Xi'an: 7.1M
Melbourne: 5.05M
Shijiazhuang: 4.8M
7.
Denver
Dar es Salaam: 6.45M
Cape Town: 4.3M
Dakar: 3.925M
Denver: 3.8M
Antananarivo: 2.75M
8.
Athens
Atlanta: 5.9M
Detroit: 5.75M
Phoenix: 4.8M
Athens: 3.5M
Orlando: 3.5M
9.
Tashkent
Tashkent: 3.3M
Frankfurt: 3.275M
Brussels: 2.725M
Lisbon: 2.5M
Turin: 1.61M
10.
San Diego
Kolkata: 17M
Chennai: 11.6M
San Diego: 3.325M
Indore: 3.275M
Agra: 2.35M
11.
Pyongyang
Toronto: 7.65M
Montreal: 4.325M
Pyongyang: 2.975M
Vancouver: 2.9M
Edmonton: 1.37M
12.
Sapporo
Riyadh: 8.4M
Baghdad: 7.15M
Kuwait City: 4.5M
Sapporo: 2.5M
Doha: 2.3M
13.
Las Vegas
Paris: 11.4M
Barcelona: 4.875M
Warsaw: 2.35M
Las Vegas: 2.3M
Munich: 2.275M
14.
Manaus
Kaohsiung: 2.775M
Daegu: 2.725M
Manaus: 2.25M
Okayama: 2.175M
Kitakyushu: 2M
15.
Volgograd
Sydney: 5.4M
Melbourne: 5.05M
Perth: 2.075M
Volgograd: 1.4M
Adelaide: 1.36M