The view west—London Bridge (right), Cannon Street Railway Bridge, Southwark Bridge, Millennium Bridge, and Blackfriars Bridges.
St Paul’s Cathedral can just be made out in the center on the far bank. At 364 feet at its highest point, St Paul’s Cathedral was London’s tallest building from 1710 until 1963.
The first true "skyscraper" to be built in London was in 1980 in the City of London, not far from St Paul’s Cathedral.
The Shard's construction began in March 2009; ironically, this was precisely when we first visited London. Construction was completed at the end of 2012. At 1,016 feet tall, the Shard is the tallest building in the UK and the 7th tallest in Europe.