ancient forest old source spring summer texture wall water window abstract architectural background barrier basic coloring colors colouring colours constructed exterior external firm fitted large light lines patchwork perspectives rock-wall rocks rugged secure security shaped shapes solid stone stones stonework strength strong style surface surfaces textures uneven variations various wallpaper well-built angles appearance architecture building contemporary contrast contrasting distinctive edged edges elements geometric geometric-shapes height high high-rise linear modern patterned patterns pointed sharp skyscrapers textured unusual views walls backdrop backgrounds blocks chipped chiseled historic limestone mortar patched perspective rough variety walled grunge paper scratched scratches weathered block block glass glass glass wall privicy glass textured glass cabin grain knots log norway planks red wood wooden bamboo cane fence line parallel brown dappled decoration decorative desktop golden grey ocher pastel plastering structure structures stucco green regular stripes vertical wave-shaped waves boulder defence defense flood rock