abandoned
alentejo
architecture
beautiful
bricks
building
buildings
construction
copper
danger
deserted
domingos
earth
environment
environmental
europe
extraction
geology
gold
heavy
historic
industrial
industry
iron
landscape
mertola
metal
mina
mine
mineral
nobody
old
outdoor
park
portugal
portuguese
pyrite
railway
red
rock
ruins
sao
sao domingos
scenic
stone
structure
sulfide
sulfur
view
work