ASCII skulls by Vagon Parovoz (from Tumblr).
Sonya Rapoport’s Shoe Field exhibition (1982/85/89). 76 people’s feelings about their shoes plotted on a huge ASCII map, constructed with physics software. The circles on the floor are also visualizations of shoe feeelings. Video documentation and more at her website. Also see Artsy and a very interesting article at artinprint.