スミソニアン博物館のインスタグラム(smithsonian) - 4月22日 02時22分

Snapped by an astronaut aboard the International Space Station, this is Washington, D.C., nestled between the Potomac River and Anacostia River. Ahead of Earth Day, our @smithsonianacm shares a pop quiz about urban waterways found in many communities around the world. Check out our story to test your knowledge.

🌎 #OurSustainablePlanet #EarthDay2023

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