Check out the Ding Darling Conservation Heritage Trail, featuring National Wildlife Federation's Conservation Hall of Fame leaders.
The Smithsonian Institution was founded for the "increase and diffusion" of knowledge from a bequest to the United States by the British scientist James Smithson, who had never visited the US himself.
Be on the lookout for Black Squirrels. The animals were introduced by the Smithsonian National Zoological Park and can be a common sight in the city.
SpaceLink lets visitors pilot a Mars rover, dock the space shuttle, try on a flight suit, track live satellites and more. SpaceLink also is home to the Hubble Space Telescope National Visitor Center. Read more.
Opened in 1876, this is generally considered to be the third oldest zoological park in the U.S. This zoo breeds the greatest number of African black footed penguins.
NASA pilots fly some of the fastest flight vehicles on the planet. The Peregrine Falcon is one of the fastest birds on the planet reaching speeds of 140mph! See one in action at the Raptor Center. Read more.
NASA awarded the Seattle Aquarium Society $500k in June 2009 to integrate ocean science information gathered from space into its marine mammal exhibits and educational programming. Read more.
Visit the Willard Smith Planetarium for shows, star parties, and information about the universe. Don't forget to visit the Pacific Science Center's Science on a Sphere, located just outside the doors. Read more.
The National Air and Space Museum Steven F. Udvar-Hazy Center became the new home for Space Shuttle Discovery, which retired after completing its 39th mission in March 2011. Read more.
Originally called the National Air Museum when it was formed on August 12, 1946 by an act of Congress, some pieces in the National Air and Space Museum collection date back to 1876.
Immerse yourself in a tunnel of beautiful photos from the Hubble Telescope. The monthly “Sunday Experiment” lets you launch rockets and learn about space science & technology from Goddard engineers. Read more.
Check out the online organizing and fundraising FONZ is doing! Amazing stuff! Read more.
