The Nebraska State Capitol, 1445 K St. in Lincoln, was designed by Bertram Grosvenor Goodhue and built from 1922 to 1932; its tower rises about 400 feet to the 19-foot Sower, and it was named a National Historic Landmark in 1976. It houses the nation’s only one-house legislature. Building hours: Monday to Friday 8 to 5, Saturday and holidays 10 to 5, Sunday 1 to 5. Free guided tours leave from the second-floor north door on the hour (weekdays 9 to 4 except noon; Saturday and holidays 10, 11 and 1 to 4; Sunday 1 to 4). The 14th-floor observation deck is open during building hours, weather permitting. Phone (402) 471-0448.