Derry-Londonderry is a city in Northern Ireland, known for its rich history and cultural significance. It is the second-largest city in Northern Ireland and is situated on the banks of the River Foyle. The city is famous for its well-preserved medieval walls, which are among the best-preserved in Europe, and its vibrant arts scene. The name "Derry" is derived from the Irish word "Doire," meaning "oak grove," while "Londonderry" reflects the city's historical ties to London. The city has a diverse population and has been a focal point for Irish history, particularly during the Troubles, a period of conflict in the late 20th century.