Complex sentence: A building designed and constructed to house the collection was opened by the Queen in 1983, and was named as Scotland's second greatest post-war building (after Gillespie Kidd & Coia's St. Peter's Seminary) in a poll of architects by Prospect Magazine in 2005.
Split into simpler sentences: A building designed and constructed to house the collection was opened by the Queen in 1983. The building housing the collection was named as Scotland's second greatest post-war building (after Gillespie Kidd & Coia's St. Peter's Seminary) in a poll of architects by Prospect Magazine in 2005.