evidence: Macau[lower-alpha 5] or Macao[lower-alpha 6] is a special administrative region of the People's Republic of China. With a population of about 710,000 people[11] and a land area of 32.9 km2 (12.7 sq mi), it is the most densely populated region in the world. [...] Macau is a special administrative region of China, with executive, legislative, and judicial powers devolved from the national government.[62] The Sino-Portuguese Joint Declaration provided for economic and administrative continuity through the handover, resulting in an executive-led governing system largely inherited from the territory's history as a Portuguese colony.[63] Under these terms and the "one country, two systems" principle, the Basic Law of Macao is the regional constitution.[64] Because negotiations for the Joint Declaration and Basic Law began after transitional arrangements for Hong Kong were made, Macau's structure of government is very similar to Hong Kong's.[65]