The museum at National Geographic Society headquarters can鈥檛 compete with the Smithsonian鈥檚 more extensive offerings, but it can be worth a stop, depending on what鈥檚 showing. Exhibits are drawn from the society鈥檚 well-documented expeditions to the far corners of the earth, and they change periodically.
The society also hosts films, concerts and lectures by famed researchers and explorers; most programs have a fee.