Ключевые слова: abandoned, canal, cave, concrete, construction, corridor, creepy, dark, dirty, drain, drainage, dry, duct, escape, fear, flow, grunge, grungy, industrial, industry, municipal, mystery, outfall, passage, pipe, pipeline, precipitation, rain, rainwater, rough, runoff, rusty, sanitary, sewage, sewage system, sewer, sewerage, storm water, stormwater, stream, system, tunnel, underground, urban, waste, wastewater, water, waterpipe,