BerlinGermany |
BostonUnited States |
3 419 623
(2013) |
3 419 623
(2013)
625 087
(2011) |
625 087
(2011) |
891 km2
|
891 km2
232 km2
|
232 km2
|
3 837.96
/km2 |
3 837.96/km2
2 694.34/km2
|
2 694.34
/km2 |