E40, also known as E40 Highway, is a major road in Europe that connects several countries. It runs from Calais, France to Riga, Latvia, covering a distance of approximately 3,000 kilometers. This route is part of the European road network and facilitates international trade and travel across the continent. The highway passes through several key cities, including Brussels, Amsterdam, and Berlin. It is an important corridor for transportation, allowing for the movement of goods and people. E40 is also significant for tourism, as it provides access to various cultural and historical sites along its path.