Marmara is a region in northwestern Turkey, bordered by the Marmara Sea to the south and the Black Sea to the north. It includes major cities like Istanbul and Bursa, known for their rich history and cultural significance. The region serves as a bridge between Europe and Asia, making it a vital area for trade and transportation. The Marmara Sea is an inland sea that connects the Aegean Sea to the Black Sea through the Dardanelles and Bosporus straits. It is characterized by its unique marine ecosystem and is an important area for fishing and tourism. The region's diverse landscapes include mountains, forests, and coastal areas.