The original Dunimarle Castle is now a ruin, but adjacent to it stands an 18th-century building, borrowing its name, constructed by the Erskine family. The house was rebuilt by R & R Dickson in 1839. It has a good library. Until recently it had some fine art which is now found on temporary loan to the National Galleries museum at Duff House, near Banff, North East Scotland.
From 1575, Dunimarle Castle had a coal mine in operation run by Sir George Bruce. The mine had a tunnel that led down to the nearby River Forth, which is some 30 meters below, this was so that the coal could be loaded onto ships. The mine was abandoned in the early 17th century and the tunnel filled in.
References:The Walls of Constantinople are a series of defensive stone walls that have surrounded and protected the city of Constantinople (today Istanbul) since its founding as the new capital of the Roman Empire by Constantine the Great. With numerous additions and modifications during their history, they were the last great fortification system of antiquity, and one of the most complex and elaborate systems ever built. They were also the largest and strongest fortification in both the ancient and medieval world.
Initially built by Constantine the Great, the walls surrounded the new city on all sides, protecting it against attack from both sea and land. As the city grew, the famous double line of the Theodosian Walls was built in the 5th century. Although the other sections of the walls were less elaborate, they were, when well-manned, almost impregnable for any medieval besieger.