Boris Johnson opens The View From The Shard viewing deck in London The Mayor of London, Boris Johnson officially opened the Shard's viewing deck today with the cut of a red ribbon, to welcome visitors to the highest vantage point in western Europe. Nearly 5,000 members of the public have signed up for access to the top today already. Above, Boris Johnson (R) with Irvine Sellar, developer of the Shard.Picture: Matthew Lloyd/Getty Images