Rum Orphanage, also known as the Prinkipo Greek Orphanage, was a Greek Orthodox orphanage. Located on the island of Büyükada near Istanbul, it housed children between 1903 and 1964. Since it closed more than half a century ago, the orphanage has fallen into a state of disrepair. Both the exterior and interior of the massive building have begun to crumble after years of weathering.At about 215,000 square feet, the orphanage is believed to be the largest wooden building in Europe, according to the World Monuments Fund. A restoration effort to turn the building into an environmental institute was announced in 2012.Take a look at the former Rum Orphanage and its complicated history.