architecture boats bridge buildings Canary Wharf city cityscape England english Great Britain landmarks London river shard skyscraper thames Tower Bridge transport urban view water blocks line London Eye railway tower train wheel boat Gherkin monument Walkie Talkie London Bridge rush hour tower blocks Moncton skyline reflections skyline break bushes cold cover current disintegrate far flow freezing icy isolated melt melting natural nature norway norwegian pour snow snowy summer thick white wild wilderness landscape mountains plateau remote ridge acuática agua bloom camalote estanque floating flor flores flotante flower invasive invasora jacinto de agua lila lilac morada ornamental pest plaga plant planta pond purple violeta track austere bare bleak canada cliff difficult environment extreme face forbidding frozen harsh icicles mountain mountainside rock Rockies Rocky Mountains severe stern stream