The Harpa concert hall in Reykjavik has an interesting series of staircases that reminded me of the work of M.C. Escher, particularly the famous never-ended staircase. So the search was on to find a viewpoint that showed as much as possible of the architecture. Going to black and white removes the distraction of the colours to emphasize the structure.
Black and white
Eastlands, Griff2012, MattB1987 and 13 more