1. "Devastated Lands” is open through Dec. 22 in Memory Hall at the National WWI Museum and Memorial in Kansas City. The museum, which is at the site of the Liberty Memorial south of Union Station, is at 2 Memorial Drive. The exhibit draws on photos and illustrations from the museum’s collection to show the devastation of World War I. The fighting destroyed entire villages in France and Belgium and left behind unexploded shells that are still being found and dismantled to this day. Museum hours are 10 a.m. to 5 p.m. Tuesday through Sunday. (The museum is a nonprofit that gets no federal funding and is unaffected by the government shutdown.) “Devastated Lands” is free with regular admission. General admission is $18 for adults, $14 for seniors 65 and older, $10 for youth ages 6 to 18, free for children under 6, and $14 for veterans and active-duty military personnel. Add $2 for a combination of general admission and admission to the tower.

2. Medication safety: 11 a.m. Friday at Vesper Hall, 400 N.W. Vesper St., Blue Springs. It’s Senior Health and Fitness Week. A guest speaker will discuss medication safety. Bring healthy recipes to share, and bring a can of food for the Community Services League. More information, 816-228-0181.

3. “Widdershins”: 7:30 p.m., City Theatre of Independence (inside the Roger T. Sermon Community Center), 201 N. Dodgion St. (the corner of Noland and Truman), Independence. Performances at 7:30 p.m. Thursday, Friday and Saturday, then at 7:30 p.m. Jan. 18 and 19 and 2 p.m. Jan. 20. It’s a mystery, and Inspector Ruffing, last seen in “Ravenscroft,” is back. In a peaceful house near the Welsh border, an entire family has vanished, while supper still sits on the table. There is no apparent violence. Inspector Ruffing’s attempt to understand what has happened to the couple and their two daughters leads him deep into his own soul for answers. Cost: $15; seniors 60 and older: $13.

4. Census records research: 2 p.m. Friday, Midwest Genealogy Center, 3440 S. Lee's Summit Road, Independence. Explore how the federal census can help in genealogy research and how to access those records. Free; register at mymcpl.org/events. For questions, call 816-252-7228.

5. Independence Uptown Flea and Craft Market: 7 a.m. to 2 p.m. Sunday, Independence Uptown Market, 211 W. Truman Road. Books, clothes, arts, crafts and repurposed furniture. For vendor information, call the Truman Memorial Building at 816-325-7843.