愛迪生在曼羅公園裡的實驗室，他在那裡發明了電燈泡

出處: "New Jersey--The Wizard of Electricity--Thomas A. Edison's System of Electric Illumination." Six views showing Menlo Park and exterior of Edison's laboratory, and electric light apparatus. Illustration in Frank Leslie's Illustrated Newspaper, January 10, 1880. Prints and Photographs Division, Library of Congress.