If it's just size you want.... here is a building with similar population, ca 30,000 ppl. https://www.google.com.au/maps/@22.3080235,114.1927302,348m/data=!3m1

If it's just size you want.... here is a building with similar population, ca 30,000 ppl. https://www.google.com.au/maps/@22.3080235,114.1927302,348m/data=!3m1!1e3 https://www.google.com.au/maps/@22.3080235,114.1927302,348m/...