Spiral staircase in the Temperate House, Royal Botanic Gardens, Kew, UNESCO World Heritage Site, London, England, United Kingdom, Europe

botanical united kingdom botanic great britain europe temperate house kew england glasshouse interior gardens london day indoors architecture interiors building interior glasshouses greenhouse greenhouses conservatory conservatories high angle view staircase staircases wrought iron ironwork spiral spirals travel destination photography color image vertical world heritage site