The mansion was constructed in 1871 as the official residence of Missouri's first family. The state's first family invites you to tour their home to see its beautiful architecture and period furniture, and to learn the history of many of the state's great governors. From March-May, public, guided tours of the first floor are conducted every Tuesday, Wednesday and Thursday from 10 a.m. to noon and 1 p.m. to 3 p.m. Go to the tours page of the mansion's website to schedule a tour. From January-February and June-November, tours are Tuesdays and Thursdays, from 10 a.m.-noon and 1 p.m.-3 p.m. Tours last 20 to 30 minutes. There are no weekday tours in August and December. However, in December the Mansion opens for Candlelight Tours, an event which showcases the mansion in full holiday decor. Free admission. Cameras are allowed.

In 1905, using a portion of the proceeds from the 1904 World's Fair in St. Louis, the general assembly appropriated $185,000 to build the Supreme Court Building. The three-story, red-brick building opened in October 1907. It features French Renaissance architecture, stone pillars at each wing of the front facade, stone trim and a slate roof. Prominent in the lobby is a massive marble staircase. The building houses the judges' offices; the Supreme Court clerk and the clerk’s staff; two courtrooms; the two-story-high Supreme Court Library, and the office of the state attorney general. Free, half-hour tours of this historic building are available Monday to Friday, 9 a.m. to 11:30 a.m. and 1 p.m. to 3:30 p.m. on the half-hour. Closed Saturdays, Sundays and state holidays. Tour times fill quickly, so please schedule your tour well in advance. Unscheduled walk-in tours are available each day at 10:30 a.m. and 2:30 p.m.