Ключевые слова: abandoned, ai, collector, conduit, construction, danger, dark, deep, dirty, drain, drainage, exit, gas, grooved, grunge, history, hole, industrial, industry, inside, interior, light, mystery, old, passage, pipe, pipeline, plumbing, pollution, repair, round, rust, sewage, sewer, sewerage, stink, stream, system, texture, toxic, tube, tunnel, underground, urban, utility, wall, waste, water, work,