Racing ahead with the construction of the second tallest building in the world, China has completed the foundation for 632-metre high Shanghai Tower,second only to 828-metre tall Burj Khalifa in Dubai.
Work crews have completed the foundation one month ahead of schedule and are now rushing to construct the ground structure of the building situated in China's financial hub of Shanghai.
It took three years to complete the foundation, and estimated that it will take another three to finish the ground structure.
