atmosphere boundary-walls brick-walls bricked-in bricks color colored colors colour coloured colours covered damp deteriorated deterioration discoloration discoloured embedded European-burial-ground faded fading ferns foliage Fort-Canning-Green Gravestones greenery growth headstones historic historic-cemetery-area history incorporated lichen lichens memorial memorial-walls mold mould old path Singapore steps tombstones walls weathered weathering worn adherence adhering aerial-roots architectural-elements backgrounds barrier boundary climber climbing-vine clinging cover coverage creeper decorative distinctive evergreen ivy light ornamental peaceful plants rocks shade shadows stone-wall stones stonework strength strong sturdy sunlight sunshine surface surfaces tenacious texture textures trees variations variegated vigorous vines wall walled