The city is named after Philippe d'Orléans, Duke of Orléans, Regent of France, and is well known for its distinct French Creole architecture, as well as its cross cultural and multilingual heritage. New Orleans is also famous for its cuisine, music (particularly as the birthplace of jazz), and its annual celebrations and festivals, most notably Mardi Gras. The city is often referred to as the "most unique" in America.
New Orleans is located in southeastern Louisiana, straddling the Mississippi River. The boundaries of the city and Orleans Parish ( ) are coterminous. The city and parish are bounded by the parishes of St. Tammany to the north, St. Bernard to the east, Plaquemines to the south and Jefferson to the south and west. Lake Pontchartrain, part of which is included in the city limits, lies to the north and Lake Borgne lies to the east.