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remota
military fort
batterie de longues
moundville
suomenlinna
casemate
old fort
battery spencer
longues-sur-mer battery
the water shed
majdanek
sewage treatment plant
former prison
fort of santa catalina
hydropower plant
wekerle battery
pumphouse
douaumont
light station
cooling house
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batterie de longues
military fort
longues-sur-mer battery
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battery spencer
old fort
sewage treatment plant
blockhouse
bunker
wekerle battery
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military fort
batterie de longues
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fortifications
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casemate
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city walls
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aileach
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pentridge
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hydropower plant
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casemate
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moundville
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moundville
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cannonsburg
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storage tank
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gasholder
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calshot
observation tower
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pentridge
distillery
former prison
fondazione
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turret
citadel hill
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holthouse
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stensness
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old fort
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moundville
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k13 submarine memorial park
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batterie de longues
longues-sur-mer battery
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douaumont
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blockhouse
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pillboxes
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dobnik