angles appearance backdrop background backgrounds barrier blocks colors colours constructed contrast contrasts cracks discoloration fitted foundation foundational growth height high large limestone linear lines mortar moss old perspective perspectives plants retaining retaining-wall secure security solid stone stones stonework strength strong surface surfaces texture textures variations variety wall walled well-built abstract art-glass blended brown clear coloration colored coloured crafted decorated decorative distinctive embedded glass hexagonal hexagons interconnected interlinked kaleidoscopic light mosaic multicolored multicoloured paneling panelling panes patterned patterns presentation raised rounded shaped shapes stained-glass style surfacing symmetrical tactile wallpaper window accommodation angular apartment-blocks apartments architecture balconies box-like building city complex concrete condo condominium designed detailed elements exterior external flats heights high-rise metal modern modernistic multi-storey multi-story plain quality safety straight structures tall units valuable value views windows color colour creased creases fabric flexible-membrane High-Density-Polyethylene intermeshed interwoven knitted light-weight linked low-degradation material plastic plastics shade-cloth shade-sail shady stretch Tan textured thermoplastic UV-block UV-inhibitors UV-resistant weave woven blue fine monofilament berlin big block borg box bundestag business circle concept construction cube cubism design fiction fisher fishermen future futuristic geometric germany gone fishing government inhuman inkreis interdimensional irrational knowledge library Lüders monument parliament philosophy physics proportion rectangle relation relational round science Spreebogen square Stephan Braunfels maroon panels rectangles rectangular vibrant boxed connected connections foliage greenery hill hillside hilltop homes houses mountains mountainside mountaintop sloped slopes squared structure structured trees walls aqua chunks close-up cold cool cooling crystals damp dissolving freezing frozen hard ice iced-particles icy melt melting on-ice Particles reflective refreshing refrigerated refrigeration Sizes small surfaced thick thin transparency transparent various water wet architectural Asia base beginnings building-outline concrete-work dark dirty foundation-work foundations groundwork Incomplete level levelled levels materials multilevel outlines overflow rain remainder remaining retaining-walls rocks slope sloping stepped steps vegetation wide work