Jenney is best known for designing the ten-story Home Insurance Building in Chicago. The building was the first fully metal-framed building, and is considered the first skyscraper. It was built from 1884 to 1885, enlarged by adding two stories in 1891, and demolished in 1931. In his designs, he used metal columns and beams, instead of stone and brick to support the building's upper levels. The steel needed to support the Home Insurance Building weighed only one-third as much as a ten-story building made of heavy masonry. Using this method, the weight of the building was reduced, thus allowing the possibility to construct even taller structures. Later, he solved the problem of fireproof construction for tall buildings by using masonry, iron, and terra cotta flooring and partitions. In the years from 1889 to 1891, he displayed his system in the construction of the Second Leiter Building, also in Chicago. According to popular story, one day he came home early and surprised his wife who was reading. She put her book down on top of a bird cage and ran to meet him. He strode across the room, lifted the book and dropped it back on the bird cage two or three times. Then, he exclaimed: "It works! It works! Don’t you see? If this little cage can hold this heavy book, why can’t an iron or steel cage be the framework for a whole building?" Jenney applied his new idea to the construction of the Home Insurance Building, the first skyscraper in the world, which was erected in 1884 at the corner of LaSalle and Monroe Streets in Chicago. Another source cites the inspiration for the steel skyscraper as coming from vernacular Philippine architecture, where wooden framed construction gave Jenney the idea. The Home Insurance Building was the first example of a steel skeleton building, the first grid of iron columns, girders, beams and floor joists ever constructed. Legacy He died in Los Angeles, California, on June 15, 1907. After Jenney's death, his ashes were scattered over his wife's grave, just south of the Eternal Silence section of Uptown's Graceland Cemetery. In 1998, Jenney was ranked number 89 in the book 1,000 Years, 1,000 People: Ranking the Men and Women Who Shaped the Millennium. Original notes and papers of Jenney, including "Jenney's 1884 holograph notebook containing, among other things, structural calculations for the Home Insurance Building, and his undated sketch