Stair lighting

I've been going through my photos from 2 1/2 years ago in Barcelona (time has flown!) in preparation for my upcoming trip and came across this photo from the great Spanish retailer Loewe. I love this staircase; modern but with such great details. I especially love the little pinhole lights and their reflection on the black granite stair treads and risers. Only a crazy architect would photograph such a small detail in a store, right?