The Principality Stadium stands in the heart of Cardiff's city centre at the confluence of the Taff and the Severn — there is something almost medieval about its relationship to the town. The 74,500-seat ground is the home of Welsh rugby and the noise produced on international match days, with the roof closed, is something close to a force of nature.
Stadium tours run on most non-event days and take you through the dressing rooms, down the players' tunnel and onto the pitch. For non-rugby visitors, this is one of the better sports stadium tours in Britain — the building itself is impressive and the presentation of Welsh rugby history is honest and enthusiastic.
If you are in Cardiff on a Six Nations weekend, book accommodation and restaurant tables months in advance. The city fills completely and the atmosphere is extraordinary — but transport and hospitality groan under the weight.