Selling the unsellable: Who’s building Land Art’s legacy? Click through the link in our bio to read more from annyleshaw on #ArtBaselStories. — Shown here: 1. Nancy Holt, Sun Tunnels, 1973-1976, Great Basin Desert, Utah. 2. Robert Smithson, Spiral Jetty, 1970, Great Salt Lake, Utah. 3. Michael Heizer, City, 1970–2022.