19.20.21. is an intriguing and well designed site looking at “the rise of supercities as the defining trend of the 21st century”
19 cities in the world with
20 million people in the
21st century
19.20.21. is an intriguing and well designed site looking at “the rise of supercities as the defining trend of the 21st century”
19 cities in the world with
20 million people in the
21st century