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