As a tribute to his mentor Frank Lloyd Wright, American architect John Lautner built a contemporary treehouse in the Hollywood Hills. Built in 1962 using wood, stone and glass, The Wolff House, as it’s known, blends with the natural environment that surrounds it. Offering 9,795 square feet of living space, the property features 16-foot, floor-to-ceiling windows, a guest house, pool and a Eucalyptus tree growing inside the home. Learn more about this modern-day treehouse.