If you've ever roamed down the eggshell-colored, spiral ramp of the Guggenheim Museum in New York City, you've had the pleasure of experiencing a Frank Lloyd Wright original.
When it comes to American architecture, Wright is a legend.
He championed organic architecture, or the belief that buildings should live in harmony with the environment.
Wright "created a new form that would resonate over time, always testing new ideas and materials," the director of Wright's Fallingwater, Lynda Waggoner, told Business Insider.
Here are some of his greatest works.
SEE ALSO: 11 of the most beautiful new homes around the world
Fallingwater, a home built over a 30-foot waterfall in southwest Pennsylvania, is a National Historic Landmark — declared 43 years ago this month.
"It was connected with nature in a very intimate way," Waggoner said. "Its furnishings grow from the house like the house grows from its setting."
The interior is just as harmonious. "He was always looking ahead, not backward," Waggoner said.
One of ten of Wright's works nominated as World Heritage sites, the Unity Temple in Illinois revolutionized church architecture.
"He turned his back on traditional church architecture," Waggoner said.
See the rest of the story at Business Insider