The silence of pines on remote peaks, Li Huayi (1999)
Recursive pyramid, Tom Beddard
A drop of water freezing at -20°C over 18 seconds, forming an ice tree (Science)
Three variations of the cover art for Efterklang’s album Piramida
By far the best digital copy I have found of Gustav Dore’s “The Enigma,” one of my favorite paintings of all time (click for extremely large version).
M51, The Whirlpool Galaxy (Martin Pugh)