Albert architecture attraction centrepiece decorative England english gardens gold Great Britain Kensington landmark London memorial monument ornamental pomp sculpture statue steps tourist tower Victorian ancient arch building door elements guildhall hall historical mediaeval medieval old ornamentation ornate pillars stone windows carvings dragons flagpole towers dais figure Kensington Gardens tourist attraction balustrade classical Corinthian entrance footpath grand Greenwich mansion Old Royal Naval College path tourism aluminium block futuristic glass gray grey iconic iron metal modern offices power silver skyscraper steel studded bridge bridges britain british classic clouded clouds historic neo-gothic river ships sky thames Tower Bridge traffic blocks buildings cathedral church city cityscape landmarks line railway shard St Paul's track train transport urban view water