Eisenhower Executive Office Building - major U.S. Second Empire public building

The Eisenhower Executive Office Building, designed by Alfred B. Mullett and completed in the 1880s as the State, War, and Navy Building, is a prominent and elaborate example of French Second Empire–style public architecture in the United States. Its massive scale, ornate mansard roofs, and richly detailed interiors set it apart from other federal buildings in Washington and reflect 19th-century ambitions for a monumental federal capital. The building continues to house executive branch offices adjacent to the White House and is noted in architectural histories for its distinctive style and scale.