“As long as you’re going to make sculpture, why not make one that competes with a 747, or the Empire State Building, or the Golden Gate Bridge?” Discover artists who did just that by creating monumental works meant to withstand time or succumb to its passage. Reflect on your own relationship to the land with a post-apocalyptic tale that might dig up more than you expect. Artists featured in this episode: Robert Smithson, Michael Heizer, Walter de Maria