Try to Fit More Lighthouses on a Postcard

Selfmade postcard sent by Alexandra (Germany) through the Postcrossing site. It features the Olhörn lighthouse, on the island of Föhr. The author of the picture is Harald Bickel.

And... how many lighthouses can you count on the back? It really surprised me!

Two German lighthouse on the stamps: Buk (Bastorf) and Staberhuk.

And even two Chinese stamps lighthouse-related: Chigua Reef (or Johnson South Reef) and Meiji (or Mischief) Reef, on 2016 stamps.