King's College Chapel is regarded as one of the greatest examples of late Gothic English architecture. It has the world's largest fan vault, while the chapel's stained-glass windows and wooden chancel screen are considered some of the finest from their era. The building is seen as emblematic of Cambridge. The chapel's choir, composed of male students at King's and choristers from the nearby King's College School, is one of the most accomplished and renowned in the world. Every year on Christmas Eve, the Festival of Nine Lessons and Carols (a service originally devised for Truro Cathedral by the college dean Eric Milner-White) is broadcast from the chapel to millions of listeners worldwide.