arrow direct directions guide guidepost guildelines metal path pointer signpost steel symbol towards way jungle Mayan Mexico plants road route rural road solitude trees tropic vegetation Yucatan arrows decorative direction exit London out pictogram pictograms sign signs station tile tiles tiling tube Underground way_out check checking consult female girl lost map orientation outdoors read reading blue canada confused confusing ontario red same sky stop stouffville street streets two which wrong asphalt black car drive expressway highway line speed tarmac traffic travel aid anesthesia cancer care clinic cure curing drip drip feeding electrolyte emergency feeding health health care healthcare hospital illness infusion intravenous drip iv iv pole liquid medic medical medicine nutrition pain parenteral procedure recovery rescue saline sick sickness sterile therapy three way cock three way valve tubing urgency bird's eye view cable-railway funicular railway germany Harz rope-way small town Thale