1 A couple of us more adventurous types haggled hard for a tuk-tuk ride up to Castelo de São Jorge (São Jorge Castle).
2 Officially it is known as "Castelo de São Jorge e restos das cercas de Lisboa", but the locals know it as Castelo de São Jorge.
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4 The Moorish castle occupies a commanding hilltop position overlooking the historic centre of Lisbon and the Tagus River.
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6 At one stage in its history, it had 77 towers and a perimeter of 5,400 metres (17,700 feet).
7 The castle was the ancient seat of power for Portugal for over 400 years, with much of the present castle dating from the 1920's when a significant restoration project was undertaken.