Washington National Cathedral organ (one of the world's largest pipe organs)

The pipe organ at the Washington National Cathedral contains 10,647 pipes after its major expansions, making it one of the largest organs in the world by number of pipes. The instrument serves liturgies, national memorial services, and public concerts and spans a wide tonal range across multiple divisions. The organ was built and expanded in stages through the 20th century and is a defining musical feature of the Cathedral's worship and public programs.