National Geographic Museum
At the National Geographic Museum, you can explore the earth and all that's in and around it, past and present. Monster Fish: In Search of the Last River Giants dives beneath the waters to reveal the rare giant fish that live hidden below. Join Zeb Hogan, National Geographic explorer and host of the Nat Geo WILD series, Monster Fish, on a journey to find and protect the world's largest freshwater fish. Meet more than a dozen of these behemoth creatures from river basins all over the world. Five life-size sculptures as long as 20 feet in length show off their amazing size, including a climbable sawfish. You can also see real fish in a gallery of aquariums containing live fish, including juvenile alligator gar. Test your survival skills in the obstacle course game Monster Size Me, and help Hogan complete a series of scientific missions in the touchtable game A Monster Mission. Very young visitors can go fishing with magnet poles along a stylized riverbank and carefully release their catches back into the river through clear chutes while older visitors take the Fishin' Decision digital challenge to see how many fish species they can quickly decide to keep or release. After that, go even bigger and experience the Cretaceous Period's Spinosaurus, the largest predatory dinosaur to ever roam the planet -- at over 50 feet long, 20 feet high and 6 tons, it made T. rex look like small potatoes. Whether you live in the area or are visiting D.C. from afar, the National Geographic Museum offers permanent and rotating exhibits that'll keep you riveted. Centrally located downtown, the museum is just a few blocks from the White House and an easy walk from many of the national monuments.