New York City
London
Shanghai
Mumbai
Moscow
Berlin
Tokyo
Lagos
Cairo
Dubai
Mexico City
Los Angeles
Sao Paulo
Paris
Kinshasa
Khartoum
Jakarta
Beijing
Delhi
Osaka
Seoul
Karachi
Dhaka
Buenos Aires
Bogota
Santiago
Quito
Chicago
Washington DC
Istanbul
Johannesburg
Nairobi
Madrid
Rome
Manila
Sydney
Ho Chi Minh City
St. Petersburg
Singapore
Havana
Population: 20 million

GDP: $1.5 trillion