The National Museum of Scotland, Edinburgh, was formed in 2006 with the merger of the Museum of Scotland, with collections relating to Scottish antiquities, culture and history, and the Royal Museum next door, with collections covering science and technology, natural history, and world cultures. The two connected buildings stand beside each other, and retain their distinctive characters. The former Museum of Scotland is housed in a modern building opened in 1998, while the former Royal Museum building was begun in 1861, and partially opened in 1866, with a Victorian Romanesque Revival facade and a grand central hall of cast iron construction that rises the full height of the building. This building re-opened on 29 July 2011 after a £47 million project to restore and extend the building, and redesign the exhibitions.