Members of the media are among the first people to tour the new viewing platform with a newly installed glass floor, atop Tower Bridge in London, 138 feet above the River Thames, Monday Nov. 10, 2014. The one million pound improvement to install the glass floor will allow visitors a view the road below and ships passing below as the historic bridge lifts its roadway to allow tall ships to pass underneath. (AP Photo / John Stillwell, PA) UNITED KINGDOM OUT – NO SALES – NO ARCHIVES