Maryland is a state located in the Mid-Atlantic region of the United States, bordering Virginia, West Virginia, and the District of Columbia to its south and west; Pennsylvania to its north; and Delaware to its east. The state's largest city is Baltimore, and its capital is Annapolis. Maryland is known as the "Old Line State" due to its role in the 1812 War of Baltimore during the War of 1812. It has a wide variety of landscapes and climates, ranging from coastal areas and rolling hills in the east, to forests, mountains, and farmlands in the west. It is home to a number of national parks, historical sites, and cultural attractions, making it a popular tourist destination.