The Trump administration's proposed 250-foot "triumphal arch" in Washington could have an "adverse" impact on nearly 40 other capital-area landmarks, according to the National Park Service. Those include changing the views and potentially altering the symbolism of many of the most iconic and important sites in Washington, including the Lincoln Memorial, Arlington National Cemetery and the Washington Monument. "In this tradition, Secretary Burgum is thrilled to champion the United States Triumphal Arch which will be a project that all Americans can be proud of. Critics, meanwhile, argue the Trump project is an eye-catching disruption to Washington's carefully planned skyline. Advertisement AdvertisementEarlier this month, the National Capital Planning Commission, headed by a Trump ally and former administration official, voted to give the project preliminary approval.