BarcelonaSpain |
AtlantaUnited States |
1 615 448
(2011) |
1 615 448
(2011)
447 841
(2013) |
447 841
(2013) |
100 km2
|
100 km2
343 km2
|
343 km2
|
16 154.50
/km2 |
16 154.50/km2
1 305.66/km2
|
1 305.66
/km2 |