Robert Smithson expanded what art could be and where it could be found. For over 50 years, Smithson’s writings, artworks, and ideas have influenced generations of artists and thinkers to consider site-specificity and land in relation to conceptual and minimalist practices. From his landmark earthworks to his “quasi-minimalist” sculptures, Nonsites, writings, proposals, collages, drawings, and radical rethinking of landscape, Smithson’s ideas remain relevant for our times. By investigating the conceptual and physical boundaries of knowledge, Smithson raised essential questions about our place in the world.