detail of the top of the legendary curved skyscraper 20 fenchurch street or walkie talkie with a view of the detail of its

fenchurch street abstract architecture avantgarde building exterior business city london future concave corporate crystal glassware design downtown district engineering facade financial futuristic geometric shape glass glazier growth high iconic innovation looking low angle view majestic modern office oppressive pattern place work reflection rise skyscraper steel tall urban walkie talkie window aluminium sky garden detail top legendary curved windows clear blue