Perlan is a landmark building in Reykjavík. 25.7 metres high, it was designed by Ingimundur Sveinsson and situated on the hill Öskjuhlíð overlooking the city, where there had been hot water storage tanks for decades. These days one of the old tanks has been converted into an interesting Saga museum showing key points in Icelandic history. At the top of the building, behind the blue glass dome, is an expensive restaurant. Paul McCartney and Heather Mills dined here when they were married.