Turret (Hadrian's Wall)

http://dbpedia.org/resource/Turret_(Hadrian's_Wall) an entity of type: WikicatObservationTowersInTheUnitedKingdom

A turret was a small watch tower, incorporated into the curtain wall of Hadrian's Wall. The turrets were normally spaced at intervals of one third of a Roman mile (equivalent to 495 metres (541 yd)) between Milecastles, giving two Turrets between each Milecastle. rdf:langString
rdf:langString Turret (Hadrian's Wall)
xsd:integer 35658860
xsd:integer 1082215141
rdf:langString A turret was a small watch tower, incorporated into the curtain wall of Hadrian's Wall. The turrets were normally spaced at intervals of one third of a Roman mile (equivalent to 495 metres (541 yd)) between Milecastles, giving two Turrets between each Milecastle.
xsd:nonNegativeInteger 20713

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