"The entrance to Hamburg Harbour"

uwepetercom.blogspot.de/2014/03/s-u-sp-e-ns-io-n-f-e-rry-r-e-ndsb-u-rg.html Altona | Hamburg | Germany | 2014-08
Altona is the westernmost urban borough of Hamburg. From 1640 to 1864 Altona was under the administration of the Danish monarchy. Altona was an independent city until 1937. Origin: wikipedia