Sopot Lighthouse - Credit: Wikimedia Commons
The Sopot Lighthouse is a navigation facility on the Polish Baltic coast, located in Sopot. It was built in 1903–04 as a part of the Balneological Institute. The extent of its focal length of the light has since been reduced to , which, according to existing criteria, no longer formally makes it a lighthouse, although it is still called so. It is open to visitors.Polskie Latarnie (in Polish) Read more on Wikipedia
Source: en.wikipedia.org