modern architecture in the city of london with the iconic curved skyscraper 20 fenchurch street in a stunning view from below and

architecture avantgarde block shape city crystal glassware design downtown district engineering facade financial building futuristic geometric glass glazier high innovation looking low angle view majestic office exterior place work reflection skyline skyscraper tall upper class urban window walkie talkie london future modern finance iconic growth day capital cities banking bank fenchurch street curved stunning walkietalkie sunny clear blue sky