According to various sources, Mong Kok has the highest population density in the world with 130,000 per square kilometer. Mong Kok is an area in the Yau Tsim Mong District on Kowloon Peninsula in Hong Kong. The lively district is characterized by a fascinating mixture of old and new multi-storey buildings, with shops and restaurants at street level and commercial or residential units above. The diversity of buildings and activities contribute to create a unique urban environment where tradition and modernity meet continuously.