Development of Museumsinsel (Museum Island), previously known as the Spreeinsel (Spree Island), began in the sixteenth century as a pleasure garden for the Stadtschloss (City Palace). The Altes Museum (Old Museum) by Karl Friedrich Schinkel was completed in 1828, and then in 1841 King Friedrich Wilhelm IV of Prussia ordered his court architect, Friedrich August Stüler, to draw up a plan to develop the land behind the Altes Museum – hitherto used for commercial purposes – and create a ‘sanctuary for the arts and sciences’. Designed by Stüler, the Neues Museum (New Museum) became the first component of this visionary haven, and was erected between 1841 and 1859. The Neues Museum was the first three-storey museum ever built and was organised as a solitaire construction executed according to a simple ground plan that enclosed two courtyards and replaced the central rotunda and cupola used in the Altes Museum with a rectangular stair hall that rose through all floors and occupied the full width of the building. Extensive bombing during World War II left the building in ruins with some sections severely damaged and others completely destroyed. Few attempts at repair were made after the war, and the wreck was left exposed with only a minimum of consolidation and protection undertaken during the GDR period. After David Chipperfield Architects’ appointment to the project in 1997–98, the building and restoration took nearly eleven years to complete, and the entire Museum Island was added to the UNESCO World Cultural Heritage list in 1999. The project was unique given that no earlier reconstruction attempt had been fully realised over a relatively long period of quiescence. Its patron’s original intention of linking museum design and presentation in a symbiotic relationship of exhibits and exhibition spaces had not only lost its appeal for the contemporary visitor but in many cases could simply no longer be created since much of the original material – both artefacts and rooms – no longer existed, especially in the larger spaces where this didactic unity was originally most apparent. When considering the way forward, it was clear that the ruin should not be interpreted as a backdrop for a completely new architecture but neither was an exact reconstruction of what had been irreversibly lost in the war seen as an option. A single continuous structure that incorporates nearly all of the available damaged fabric while allowing a series of contemporary elements to be added became the preferred path, often described as ‘the third way’. The key aims of the project were to recomplete the original volume, and to repair and restore the parts that remained after the destruction of World War II. The process can be described as a multidisciplinary interaction between repairing, conserving, restoring and recreating all of its components. The original sequence of rooms was restored with newly built sections that create continuity with the existing structure. The almost archaeological restoration followed the guidelines of the Charter of Venice, respecting the historical structure in its different states of preservation. Museum Island Berlin, Germany 1997–2009 Neues Museum