Project: The Shard in London
It's Europe's tallest building. It's also generously solar powered and 95 percent of its construction materials are recycled. The Shard, a mixed-use tower in London by Renzo Piano Building Workshop is slated for completion in 2013. Its 1,016-foot height and nearly 2-million-quare-foot glass façade is already a London icon. Images courtesy of Sellar Property Group.