From its forty-three miles of Pyrex glass tubing to the dendriform columns soaring in the Great Workroom, the Frank Lloyd Wright-designed S.C. Johnson Administration Building is truly a unique work of art that reflects that innovation and adventure that are still the spirit of S.C. Johnson today. Among the building's special features are the Great Workroom's more than one-half acre of open workspace and the "bird cage" circular elevators that run from the basement to the Penthouse level, giving a panoramic view of the building. The Research Tower was Wright’s vision of a vertical compliment to the Administration Building. It stands 153 feet tall and its central core, which is 13 feet in diameter, extends 54 feet into the ground. All 15 floors of the Research Tower are supported by the “taproot” core, much like a tree supports its branches. In 2013, the company undertook an extensive restoration, during which approximately 22,000 bricks and more than 7,000 Pyrex glass tubes that were used to construct the building’s numerous windows were replaced. The company relit the Tower in late December 2013 after final restoration of the original lighting scheme. (Adapted from the S.C. Johnson website)