Sure! Go down Park Road. turn left, go up as far as the set of traffic lights and turn left. The place you are looking for is the second building on the right.
If you're looking at the work of art and you want to understand what is original and what's a restoration, you will take a tiny supple of pigment and analyze it.
I remember coming out of a pub one evening in Edinburgh and looking up at the sky with all the light pollution in the city and seeing this esoteric light across the sky hovering there.