Ad Parnassum is a pointillist painting by Swiss-born artist Paul Klee.

It was created while Klee was teaching at the Dusseldorf Academy following his trip to Egypt three years prior.

The painting process consisted of first applying large squares of muted color on unprimed canvas.

The structure could also be interpreted as the roof of a house or a mountain and was likely inspired by the Egyptian pyramids, the Niesen that overlooks Lake Thun in the artist's home country, and the titular Mount Parnassus.

[1][2] Ad Parnassum was painted during a turning point in Klee's artistic style and is now considered a masterpiece in pointillism.