Perlan (English: The Pearl) is a landmark building in Reykjavík, the capital of Iceland. It is 25.7 metres (84.3 ft) high. It was originally designed by Ingimundur Sveinsson. Perlan is situated on the hill Öskjuhlíð where there had been hot water storage tanks for decades. In 1991 the tanks were updated and a hemispherical structure placed on top.