"Height: 111 m St Paul’s Cathedral was completed in 1710, and became the tallest building in London. The old St Paul’s cathedral, originally built in 1310, stood at a height of 150 m and was also the tallest building, before being damaged by the Great Fire of London in 1666."
"Height: 370 m Battersea Power Station was the first building to surpass St Paul’s height. It is a decommissioned coal-fired power station located in Nine Elms, Battersea. It ceased generating electricity in 1953 and is currently undergoing a comprehensive redevelopment."
"Height: 235 m Few skyscrapers were built in London in the 20th century, owing to restrictions on building heights imposed by the London Building Act of 1894. One Canada Square will remain London’s tallest building until the Shard’s completion in 2012. It is now the 2nd tallest. "
"Height: 180 m 30 St Mary Axe, nicknamed the Gherkin for its singular shape, is one of London most iconic building. It is currently the 10th tallest building in London. "
"Height: 230 m The Heron Tower, officially known as 110 Bishopsgate, was built in 2011 and currently stands as the 3rd tallest building in London. The skyscraper is also well known for its skybars, namely Shushisamba and Duck & Waffle both overlooking the city."
"Height: 309 m The shard, with 95 storeys, is currently London’s tallest building. It is also the tallest building in the EU. The shard host a viewing gallery and open-air observation deck on the 72nd floor, offering a great panorama of London. "
"Height: 225 m The building is the 4th tallest building in London. The City giant’s nickname is fairly self-explanatory. Its sloped profile and cross-hatched facade give it the appearance of a giant grater. "
"Height: 160 m The Walkie Talkie is the 12th tallest London building . Its distinctive shape created problems, acting as a concave mirror and reflecting sunlight onto the streets. Temperature at street level of up to 91°C were observed, allowing a reporter to fry an egg in a pan."