The organs of Saint Giles' Cathedral in the Royal Mile, Edinburgh.
Very lucky to get such a good shot as Cathedral interiors can be gloomy and a flash may not always give enough depth of illumination. But the light from the top of the organ dome added enough back lighting to bring the pipes in to clarity.
Here's a shot of the exterior, on the usual sort of overcast Scottish day. A foreboding presence...?
Brilliance and beauty inside, but gloomy and grimy outside... what a contrast.