Solved puzzle reveals fabled Cambodian temple

It has taken half a century, but archaeologists in Cambodia have finally completed the renovation of an ancient Angkor temple described as the world's largest three dimensional puzzle.

The restoration of the 11th-century Baphuon ruin is the result of decades of painstaking work, hampered by tropical rains and civil war, to take apart hundreds of thousands of sandstone blocks and piece them back together again. 

The story of the 10-million-euro ($14m) renovation began in the 1960s when a French-led team of archaeologists dismantled the pyramidal building because it was falling apart, largely due to its heavy, sand-filled core that was putting pressure on the thin walls...