This anonymous little gate is, surprisingly, a rear entrance to the extensive and well-concealed gardens around the back and side of Dorset House, the Royal Marines Reserves building in Clifton. The front's a lot more obvious, as is the grand Clifton mansion that takes up the bulk of the site, but the more utilitarian building at the back of this photo is barely visible from the front road unless you walk right up to the perimeter.
Who knows what they do there? Elite fighting forces tend to be a bit secretive by nature.
GPS Coordinates:
51.45856, -2.62490
Location: Clifton Down