Grand Central Terminal in New York has a room where people can whisper to each other 50 feet apart!
In this famous NYC landmark, there's a room called the Whispering Gallery. The reason for this name is that the shape of the room gives it an interesting acoustic feature. People who visit this room can stand in diagonal corners of the 50-foot wide chamber and whisper to one another. They can hear each other because the room is arched, and the sound carries through the ceiling.
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