Lismore Lighthouse,
http://www.lightphotos.net/photos/displayimage.php?pid=24520&message_id=2634954102743e52f8cc8acf31cda77c&message_icon=info#cpgMessageBlock (http://www.lightphotos.net/photos/displayimage.php?pid=24520&message_id=2634954102743e52f8cc8acf31cda77c&message_icon=info#cpgMessageBlock)
The Cape Nelson Lighthouse,
http://www.lighthouses.org.au/lights/VIC/Cape%20Nelson/Cape%20Nelson%20Lighthouse.htm (http://www.lighthouses.org.au/lights/VIC/Cape%20Nelson/Cape%20Nelson%20Lighthouse.htm)
Dongju lighthouse,
https://zh.wikipedia.org/wiki/%E6%9D%B1%E8%8E%92%E5%B3%B6%E7%87%88%E5%A1%94#/media/File:%E6%9D%B1%E7%8A%AC%E7%87%88%E5%A1%942.jpg (https://zh.wikipedia.org/wiki/%E6%9D%B1%E8%8E%92%E5%B3%B6%E7%87%88%E5%A1%94#/media/File:%E6%9D%B1%E7%8A%AC%E7%87%88%E5%A1%942.jpg)
http://www.matsu-nsa.gov.tw/user/Attraction-Content.aspx?a=73&lang=1 (http://www.matsu-nsa.gov.tw/user/Attraction-Content.aspx?a=73&lang=1)
Good question! I'm not sure, maybe kind of protection from weather for LH keepers?
In fact for Scotland lights - this is not a wonder, there are thousands of kilometers of stone walls around the contry. See here: https://pub-prod-sdk.azurewebsites.net/api/file/3e580796-0657-4dcd-ba6c-a6c001080a4e