Hawthornden Castle - Credit: Wikimedia Commons
Hawthornden Castle is located on the River North Esk in Midlothian, Scotland. The castle lies a mile to the east of Roslin at grid reference , and is just downstream from Roslin Castle. Hawthornden comprises a 15th-century ruin, with a 17th-century L-plan house attached. The house has been restored and now serves as a writer's retreat. Man-made caves in the rock beneath the castle have been in use for much longer than the castle itself.The listed building report states "probable Bronze Age origins". Read more on Wikipedia
Source: en.wikipedia.org