Robert Smithson's Spiral Jetty
Great Salt Lake, UT, USA
Spiral JettyI spent a morning alone with Spiral Jetty. It was partially submerged so I wasn't able to walk all the way out, but I brought rubber boots along so that I could go at least partway. Being out on the jetty itself is a quiet and magical experience, surrounded by the great Salt Lake, mountains, and grasslands. Highly recommended day trip if you're going to be near Salt Lake City.