Route 20, also known as U.S. Route 20, is a major east-west highway in the United States. It stretches approximately 3,365 miles from Boston, Massachusetts, to Newport, Oregon. This route is notable for being the longest continuous road in the U.S., passing through various landscapes, including mountains, plains, and urban areas. Along its path, Route 20 connects several key cities and attractions, such as Chicago, Buffalo, and Yellowstone National Park. The highway serves as an important corridor for commerce and travel, offering scenic views and access to diverse regions across the country.