boiler buffers engine England english fender Great Britain iron kent light machinery metal nostalgia nostalgic power rail railway steam steel arch architecture art birds ceiling elements Forde Abbey medieval architecture nest pattern somerset stone swallows symmetry ancient bushes Cornish cornwall Cotehele dovecote garden historical national trust old rural spring trees brick bush clipped entrance Gloucestershire hedge Hidcote path plant slot slotted sundial topiary box Buxus decorative lawn ornamental Penshurst Place shrub British Museum fluted history landmark London museum pillars portico Portland strength strong support flowers Kniphofia Nymans orange perennials profusion Redhot poker South African spikes summer Sussex torch lily clouds direction footpath green landscape natural nature Pembrokeshire plants route sky track trail wales welsh