The Waltham Museum Inc.

The Waltham Museum Inc., 25 Lexington St., focuses on New England's turn-of-the-20th-century manufacturing heritage. Many items produced in Waltham, including automobiles, bicycles and clocks, are on display in the Metz, Waltham Watch, Rudy Currier and Hentzi exhibit rooms.

Time: Allow 1 hour, 30 minutes minimum.