Freepik
    HONG KONG, CHINA - APR 22: Crowded skyscrapers over sea on April 23, 2012 in Hong Kong, China. With 7M population and land mass of 1104 sq km, it is one of the most dense areas in the world.

    HONG KONG, CHINA - APR 22: Crowded skyscrapers over sea on April 23, 2012 in Hong Kong, China. With 7M population and land mass of 1104 sq km, it is one of the most dense areas in the world.