Frank Lloyd Wright’s revolutionary tower opens for public tours in Wisconsin

If you go

• SC Johnson Research Tower: Tours begin at the Golden Rondelle Theater, at 1525 Howe St., Racine, Wis.; or 262-260-2154. SC Johnson will offer five free tours of up to two hours on Fridays and Saturdays and two on Sundays through Sept. 27. Times vary, and reservations are recommended.

• Wingspread: 33 E. Four Mile Road, Racine, Wis.; or 262-681-3353. Tours are free but by appointment only between 9:30 a.m. and 3 p.m.