arid barrel barrel-cactus Cacti cactus clumps clusters coloring colors colouring colours compact covered display dry echinocactus garden garden-display garden-plants globose globular gravel ornamental perennial pointed points pronounced-ribs protection protective ribbed ribbing ribs rocks rocky round shape shaped sharp skin soft-wooded-perennial spikes spination spines spiny surface symmetrical symmetry thick-tough-skin to-the-point Athens berlin board Cairo cities compas cross crossroads direction directions distance indicate indicator janeiro lennestadt London name path paths pedestrian point pointing pole rio roads roadsign roadsigns rome sign signboard signs street traffic Sydney Tokyo Vilnius warsaw advice alert appropriate behavior appropriate behaviour area assemble assembling Assembly communicating communication emergency evacuate evacuation gathering get together green group meeting meeting place meeting point message outdoors outside people place safety security staff white workers beach guy male man ocean profile sand shirt sunny black brown browns contours cover dips exterior grooves hard horny plates layers lines outlines rough shapes shell shelter sides solid strength strong textures tips tortoise tortoise shell tough amand montrond Paris saint abstract appearance background blended bright brilliant circles circular color colored colour coloured decorative design details interconnected interwoven kaleidoscopic light mandala patterns perspectives petals style texture textured thick thin tiles vibrant wallpaper close-up cluster edge edged edges foliage greenery leaf leaves pattern plant radiating shadow shadows sunlight surfaces vegetation weed