Cardiff, the capital of Wales, is a refined coastal city with a nightlife scene and a medieval castle with ornate Gothic Revival interiors. The city is the country's chief commercial centre, the base for most national cultural and sporting institutions, the Welsh national media, and the seat of the National Assembly for Wales. The city is a significant tourist centre and the most popular visitor destination in Wales with 18.3 million visitors in 2010. Cardiff is a very green city; it has a reputation as a city of castles, having 5 different castles within its surroundings.