| 11. | This castle was a medieval square pele tower within a curtain wall.
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| 12. | Dzongs comprise heavy masonry curtain walls surrounding one or more courtyards.
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| 13. | The tower projects beyond the curtain wall to a distance of.
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| 14. | A full curtain wall separates the local from the express tracks.
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| 15. | The fort was badly sited and the curtain walls were feeble.
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| 16. | The long side of the structure was a glass curtain wall.
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| 17. | A large part of the western curtain wall collapsed in 1922.
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| 18. | They were accessible by a bridge walkway from the curtain wall.
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| 19. | The base of the corner tower and curtain walls were uncovered
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| 20. | As an urban expression the building sits on a curtain walls.
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