Gediminas' Tower is the remaining part of the Upper Castle in Vilnius. Gediminas, who lived in the 13th and 14th century, was Grand Duke of Lithuania. Today, he is seen as the founding figure of the Lithuanian state.
Comments and suggestions are much appreciated!
Here are my get pushed-challenges
Update 05/2019: Year 3 begins! I'm living in Bremerhaven near the North Sea since October...