WarsawPoland |
RiyadhSaudi Arabia |
1 810 598
(2012) |
1 810 598
(2012)
5 700 000
(2013) |
5 700 000
(2013) |
523 km2
|
523 km2
1 554 km2
|
1 554 km2
|
3 461.95
/km2 |
3 461.95/km2
3 667.95/km2
|
3 667.95
/km2 |