A beautiful downtown park with a famous Louis Arch in the United States, known as the West Gate of St. Louis, Missouri. It is the tallest monument in the United States standing alone. The monument is 196 meters high and looks very thin from a distance, like a rainbow bridge connecting the ground to the sky is spectacular. The memorial park is quite large. In addition to the tall monument, there is a museum introducing the history of St. Louis and how to build this monument. There is an elevator to visit directly. Be sure to go up and see far away. St. Louis' arc arch in Missouri means entering the western United States. During the American or British colony, immigrants marched westward, conquering remote areas and finding their way to life. St. Louis was the only way to the west of these indomitable pioneers, who once described St. Louis as the "gate to the west" in image. St. Louis' arc arch was built to commemorate them.