The British Library in London's St. Pancras is often hailed as the only major public building to be built in Great Britain in the twentieth century. "No other project, since the building of St. Paul’s Cathedral over 400 years ago, took so long to construct or was surrounded by so much controversy." Begun in 1962, completed in 1997, and opened to the public in 1998, the Brutalist building is a world-class a repository of artistic, scholarly and literary treasures. It has now, along with seven other post-war libraries, been given Grade I Listed status for "its soaring and stimulating spaces" which, according to Historic England, have become "much-loved and well-used by scholars and members of the public alike."