No. 1 Undershaft skyscraper, London, United Kingdom
London-based firm Avery Associates Architects has unveiled designs for a 270-meter tower, dubbed the No. 1 Undershaft, planned adjacent to the city's Leadenhall Building (aka, the cheesegrater). The tower is planned to be the tallest in London’s central skyscraper cluster, and second tallest in London after the Shard.