Chicago is the home of jazz, the birthplace of skyscrapers, the gathering place of modern art, delicate food, avant-garde drama and hard-core sports fans. Chicago inherits more American spirit and traditional culture, so it is also called "the most American" city. Architecture is the highlight of Chicago's tour. There is an unstoppable charm of a soybean seed. Located in Millennium Park on Lake Michigan, the cloud gate is an eye-catching, master-class, extraordinary public art. Cloud Gate is made of 68 perfectly polished stainless steel sheets, reflecting Chicago's unique urban landscape. I can't find any traces of splicing. Looking inside, there will be a strong sense of science fiction, as if it will be inhaled into the time tunnel.