German Navy Museum-Wilhelmshaven/Germany

Marinemuseum_Wilhelmshaven
CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=118752

Maritime_Meile
By KuK, Public Domain, https://commons.wikimedia.org/w/index.php?curid=382621

 
Submarine Type 205-U10
1200px-Marinemuseum_Wilhelmshaven_-_Flickr_-_Axel_Schwenke_(33)
By Axel Schwenke from Meschede, Deutschland – Marinemuseum Wilhelmshaven, CC BY-SA 2.0, https://commons.wikimedia.org/w/index.php?curid=18472298

Beach on the island of Düne located 1 mile to the east of the main island Heligoland

Blick_zur_Insel_Helgoland_-_geo-en.hlipp.de_-_9875
By Carsten Pätz, CC BY-SA 2.0, https://commons.wikimedia.org/w/index.php?curid=12749922