In the United States, which New Year's Eve celebration is famous for lowering a ball at One Times Square?

The famous ball-lowering celebration at One Times Square is Times Square New Year's Eve.

The event takes place in New York City on December 31, with the illuminated ball descending during the final minute before midnight. The countdown is watched by people in Times Square and by television audiences around the world.

The ball tradition began in 1907 after fireworks restrictions made the earlier celebration at One Times Square less practical. Since then, the object has been redesigned several times, growing from a relatively simple electric-lit sphere into a technologically advanced installation covered with crystal panels.

The celebration is often described simply as “the ball drop,” but that phrase can refer to the whole Times Square event as well as the physical descent. It should not be confused with the Rose Parade, which takes place in Pasadena on New Year's Day and is a daytime procession rather than a midnight countdown.