Among the cannons of American architecture, Frank Lloyd Wright buildings stand among the most foundational examples of organic architecture. From the cantilevered drama of Fallingwater to the spiraling concrete of the Guggenheim, Wright’s work reshaped how architects thought about space, material, and—most notably—the relationship between a building and its surroundings. Across nearly six decades of work, he designed a slew of projects across the US—and even a few abroad—reflective of his guiding belief: that architecture should grow out of its landscape rather than impose upon it. Below, AD walks through 10 of the greatest Frank Lloyd Wright buildings, from the Hollyhock House to Unity Temple, Robie House, and more.