MeccaSaudi Arabia |
Xi'anChina |
1 700 000
(2007) |
1 700 000
(2007)
7 270 000
(2006) |
7 270 000
(2006) |
400 km2
|
400 km2
9 983 km2
|
9 983 km2
|
4 250.00
/km2 |
4 250.00/km2
728.24/km2
|
728.24
/km2 |