Sixteen, part 3

A digitally-altered view of the National Monument of Scotland at Calton Hill in Edinburgh — a row and two square corners of classical columns topped by lintels — viewed looking through the columns and upwards. The image's colours have been altered so the sky is pure white; the monument and its plinth are their natural sandstone colours, but with the contrast enhanced, so they're unnaturally bright in the sunlight and pure black in the shade.