The J. Edgar Hoover Building is the headquarters of the Federal Bureau of Investigation (FBI) located in Washington, D.C.. Completed in 1975, the building is named after J. Edgar Hoover, the first Director of the FBI, who served from 1935 to 1972. Its modernist architectural style features a distinctive concrete façade and is a prominent landmark in the city. The building houses various offices and facilities for the FBI, including administrative functions and investigative units. It is situated near other significant government buildings, contributing to the area's importance in national security and law enforcement. The Hoover Building is also a site of public interest, often associated with the FBI's history and operations.