Orange Shapes in Frame, 1964
As a child, Frankenthaler used to drip nail polish into a sink full of water to see the colors swirl. Years later, as a successful New York artist, she poured paint onto canvas, developing an entirely new, brush-less, technique. If you look closely, you can see how the paint stains, sinking into the weave of the linen. The artist herself was fascinated by the depth of these canvases. She said: It has to be flat, flat, flat and also move miles into space.
(This image is protected by copyright and can't be included in the map, but you can go see it on Tufts Campus!)