Castle of Mey built
1566 CE.
Shown on the map at 58.647°, -3.224°.
The Castle of Mey (also known for a time as Barrogill Castle) is located in Caithness, on the north coast of Scotland, about 6 miles (10 km) west of John o' Groats. In fine weather there are views from the castle north to Orkney.
Text from the Wikipedia article Castle of Mey, licensed CC BY-SA 4.0.