Fort of Greta may refer to:
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Fort of Greta (Horta)
The Fort of Greta (also referred to as the ''Castelo da Greta'', ''Forte da Guia'' or Forte da Nossa Senhora da Guia da Horta, respectively: Castle of Greta, Fort of Greta or Fort of Our Lady of the Guide) is a fortification, whose remnants are loc ...
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Fort of Greta (Angra do Heroísmo)
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