WarsawPoland |
BeijingChina |
1 810 598
(2012) |
1 810 598
(2012)
21 148 000
(2013) |
21 148 000
(2013) |
523 km2
|
523 km2
16 411 km2
|
16 411 km2
|
3 461.95
/km2 |
3 461.95/km2
1 288.65/km2
|
1 288.65
/km2 |