For our 15-year anniversary issue the theme is legacy. And who better to grace the cover than the legendary Frank O. Gehry, photographed by Buck Ellison. The second cover, photographed by Tanya and Zhenya Posternak, is dedicated to eight emerging firms who are building future legacies with bold moves: A+A+A, Agency—Agency, ALAO, ANY, Beyond the Built Environment, Minjae Kim, Sean Canty Studio, and Marsollier Villacorta LLC.