adventure
aerial
area
batch
bergarena
bing
boney
boney dump
bottrop
building
business
coal
dump
europe
famous
gardening
gob
halde
haniel
hill
history
industrial
industriekultur
kunst
landmark
landscape
mining
mountain
nordrhein
oberhausen
outdoors
park
pile
pit heap
remediation
route
ruhr
ruhr area
scenic
sky
spoil bank
stockpile
sun
theater
totem pole
totem poles
tourism
travel
westfalen
westphalia