Tucked inside its Capitol building is a little-known curiosity: the Whispering Gallery. Located beneath the Capitol dome in National Statuary Hall, this acoustic oddity allows sound to travel in a surprising way.
A person standing at one side of the curved wall can clearly hear someone speaking in a whisper on the opposite side, thanks to the hall’s elliptical shape and domed ceiling.
Tour guides love demonstrating it, but few visitors realize they’re standing in a real-life echo chamber. Legend has it that President John Quincy Adams even once thwarted a political scheme simply by overhearing it from his seat.
– Staff report with AI assist*
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