Ruthven Barracks.

Couple of "visits" today. Mainly for t'other fellah to see how Insh Reserve had changed since he spent time doing volunteer work up there. Reading his Blip i think he was a wee bit peeved/underwhelmed and wondering if the "B" in R.S.P.B. stood for Butterfly rather than Bird since the We have paid/are members sticker sported a Butterfly shape rather than the time-honoured bird. En route we spotted Ruthven barracks; about which I knew damall, so of course I had to have a wee search.
The most abridged version I found told me:-

"Overview
Spot the bulwark against the Jacobites on a prominent mound visible for miles around.
Ruthven Barracks were built by George II’s government in the early 1700s after the failed Jacobite uprising of 1715. The troops stationed there were to maintain law and order and enforce the Disarming Act of 1716.
The barracks saw action twice. A 300-strong Jacobite attack failed to take the barracks in 1745, but a more heavily-armed attack the next year forced the barracks’ surrender. The Jacobites rallied here after their defeat at Culloden before conceding."

Every time I see something like this I can't help wondering if it was flat, or they shaved its top off.

A § in WIKIwotnot further informed me that:-
"Ruthven Barracks, near Ruthven in Badenoch, Scotland, are the best preserved of the four barracks built in 1719 after the 1715 Jacobite rising. Set on an old castle mound, the complex comprises two large three-storey blocks occupying two sides of the enclosure, each with two rooms per floor. The barracks and enclosing walls were built with loopholes for musket firing, and bastion towers were built at opposite corners. 
Destroyed by Jacobites following their retreat after the Battle of Culloden in 1746, the Barracks ruins are maintained as a Scheduled Monument by Historic Scotland. They are accessible at all times without entrance charge."