architecture
bright
building
chemical
chemical plant
clouds
complex
complexity
dark
distillation tower
dusk
energy
environmental damage
evening
factory
fossil fuel
gas
gas refinery
gasoline
germany
green
grey
horizontal
illuminated
industrial
industrial building
industry
light
natural gas
nordrheinwestfalen
north rhine westfalia
north rhinewestphalia
oil
oil refinery
petrochemical plant
petrochemistry
pipes
plant
pollution
refinery
shiny
silo
sky
steel
sunset
tall
technology
tower
tubes
yellow