Which city is not in the Republic of Ireland?

Glasgow is the most populous city in Scotland and the fourth-most populous city in the United Kingdom. In 2020, it had an estimated population of 635,640.

Glasgow grew from a small rural settlement on the River Clyde to become the largest seaport in Scotland, and tenth largest by tonnage in Britain. Expanding from the medieval bishopric and royal burgh, and the later establishment of the University of Glasgow in the 15th century, it became a major centre of the Scottish Enlightenment in the 18th century. From the 18th century onwards, the city also grew as one of Britain's main hubs of transatlantic trade with North America and the West Indies.

Natives or inhabitants of Glasgow are known as Glaswegians, and are well known for their distinctive dialect and accent. Glasgow hosted the 2014 Commonwealth Games and the first European Championships in 2018, and was one of the host cities for UEFA Euro 2020. The city is also well known in the sporting world for football, particularly the Old Firm rivalry between Celtic and Rangers.

Ireland, also known as the Republic of Ireland, is a country in north-western Europe consisting of 26 of the 32 counties of the island of Ireland. The capital and largest city is Dublin, which is located on the eastern side of the island. The country's three main international airports at Dublin, Shannon and Cork serve many European and intercontinental routes with scheduled and chartered flights.