AAA Editor Notes
Octagon House is at 919 Charles St. This 1854 dwelling includes five floors furnished with antiques. The house was constructed with central heating and running water, and contains a central 40-foot circular stairway. What is considered to have been the nation's first kindergarten as certified by the Library of Congress also is on the grounds and is furnished in period. A late 1800s barn, moved from the old Watertown-Milwaukee Plank Road, houses farm implements and exhibits.
Guided tours are available. Time: Allow 1 hour, 30 minutes minimum.