Frank Lloyd Wright's Taliesin is featured on CNN.com today as a must-see for Wisconsin visitors. Wright, with his ideas that buildings should exist in harmony with nature, has served as one of Bicycle City's strong influences.

Built in 1911, Taliesin overlooks the Wisconsin River in Spring Green. Local limestone and river sand were used to make the building's plaster, while tall glass windows in the living room provide both stunning views and natural light, a key ingredient in sustainable architecture. Some students in the Frank Lloyd Wright School of Architecture live in the house, though the article makes no mention of where the students live in the winter, as the home does not have heat. Wright had the furnaces removed because he spent winters living in Arizona and had no use for them.

Nearly 21,000 people come to the 600 acre estate every summer. Check out the Taliesin Preservation for more information.