London Skyscrapers

London Skyscrapers

Simon Dawson/Bloomberg

A pedestrian walks across the Millennium Bridge as Tower 42, left, the Leadenhall building, also known as the 'Cheesegrater,' center, and 20 Fenchurch Street, also known as the 'Walkie-Talkie,' stand on the horizon in London, on Feb. 6, 2014.