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Aragon Gate, Castello a Mare, Palermo.
Castello a Mare or Castellammare (pronounced [kaˌstɛllamˈmaːre]) is an ancient fortress that guarded the entrance to the port at Palermo in La Cala. Extensive remains are visible, some of which are open to the public. There is a Norman keep, a fortified gate or entrance, and remains of a sophisticated Renaissance star-shaped defence.
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