This week, the Tidal Basin Ideas Lab—a partnership between the National Trust for Historic Preservation, Trust for the National Mall, and the National Park Service, alongside civic partner Skidmore, Owings & Merrill (SOM)—unveiled proposals from five leading landscape architecture firms that reimagine the future of Washington D.C.’s iconic Tidal Basin and National Mall. Visit the online exhibition to learn more about the Tidal Basin's histories and challenges, as well as to share feedback on the ideas for its evolution.