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Abraham Lincoln's top hat (Courtesy of American History Museum

Friday, May 27 Lincoln Exhibit Closes Sunday

You mustn’t miss this show, Abraham Lincoln: An Extraordinary Life, which closes Monday, May 30. This is your last chance to see the American History museum’s unparalleled collection of artifacts from the life and times of the 16th president. See the gold pocket watch that carries a secret message inside, a patent model of Lincoln’s own invention, the top hat he wore the night he was assassinated at Ford’s Theatre and so much more. Exhibition photos are also online. Special guided tours offered daily at 2:00 PM. The museum will be open until 7:30 PM today and Saturday. American History Museum

Saturday, May 28 Spark!Lab

The Lemelson Center’s Spark!Lab offers young visitors hands-on experiments that teach about science, the invention process and the role of technology in American history. Activities rotate on a regular basis to provide visitors with new learning experiences. Staff-led experiments are offered most days at 11:00 AM, 12:00 PM, 1:00 PM, 2:00 PM, and 3:00 PM. Confirm schedule at either information desk. Free. American History Museum. 10:00 AM to 4:00 PM.

Please note: Roads around the National Mall will be closed Sunday for Rolling Thunder and Monday for a Memorial Day parade. Please see DC’s Department of Transportation web site for more information .

Sunday, May 29 Friendship Dance

The Children of the Four Directions sing, drum and tell of the ways of their tribe. Gifts from each tribe will be presented to the museum and a Friendship Round Dance ends the event. Free. 10:30 AM to 1:30 PM. Museum of the American Indian

Monday, May 30 Dinosaurs on the Big Screen

Dinosaurs 3D will take you into the world of the largest known dinosaurs, Argentinosaurus and Gigantosaurus. Experience their lives in the Early Cretaceous period as they struggle to survive in a brutal environment. Paleontologist Rodolfo Coria is your guide for a archeological dig in Argentina. The film is shown at 2:25, 4:25 and 6:25 daily, in the Johnson IMAX Theater at the Natural History museum. Tickets are $9 adults, $8 seniors, $6.50 members and $7.50 children ages 2 to 12. Toll free phone 866-868-7774 or online. Natural History Museum

For updates on all exhibitions and events, visit goSmithsonian.com