Derry, also known as Londonderry, is a city in Northern Ireland located on the banks of the River Foyle. It is known for its well-preserved medieval walls, which are among the best in Europe. The city has a rich history, with roots dating back to the 6th century, and it played a significant role during the Troubles, a period of conflict in Northern Ireland. Derry is also recognized for its vibrant cultural scene, including music, art, and festivals. The City of Derry Jazz and Big Band Festival and the Derry Halloween Festival attract visitors each year. The city's diverse community and historical significance make it an important location in Irish history.