S
已访问地点：144
联合国会员国：1 / 193 (1%)
联合国+（国家和地区）：1 / 256 (0%)
最北端：Baltimore (39° 17′ N, 76° 36′ W)
(39° 17′ N, 76° 36′ W)最西端：Los Angeles (34° 3′ N, 118° 14′ W)
(34° 3′ N, 118° 14′ W)最东端：Ocean City (38° 20′ N, 75° 5′ W)
(38° 20′ N, 75° 5′ W)最南端：Key West (24° 33′ N, 81° 46′ W)
(24° 33′ N, 81° 46′ W)加入时间：2年前