One Canada Square to the Security Director itemising how many people have left the affected floor and how many remain. One Canada Square has a steel pendulum that serves as a tuned mass damper. The pendulum sways to offset movements in the building caused by strong gusts of wind. The building can sway in the strongest winds. The lobby is high, clad in Italian Rosso Levanto and Verde Imperial Guatemalan marbles imported from Italy, Guatemala and Turkey. The marble clad under steel ceilings gives the impression of: ""Rather than entering a corporate reception, you feel as if you’re entering a hushed antespace of
Citigroup Centre, London Citigroup Centre, London The Citigroup Centre is a building complex in London. It houses Citigroup's EMEA headquarters and is located in Canary Wharf in the city's Docklands. The centre provides of floor space across two merged buildings - 33 Canada Square (known as "CGC1") and 25 Canada Square (known as "CGC2"), and houses the bulk of Citi's UK employee base. Together, both buildings form the Citigroup Centre complex. 25 Canada Square, or Citigroup Centre 2, stands at and, alongside HSBC Tower (with which it was built in tandem), is the joint 4th-tallest building in the United Kingdom (behind The Shard,