MadridSpain |
NanjingChina |
3 041 579
(2013) |
3 041 579
(2013)
8 116 000
(2012) |
8 116 000
(2012) |
607 km2
|
607 km2
6 596 km2
|
6 596 km2
|
5 010.84
/km2 |
5 010.84/km2
1 230.44/km2
|
1 230.44
/km2 |