Today we visited Castelo de São Jorge. We walked down to the main square expecting to pick up Tram 28E, but unfortunately this tram stop had been temporarily suspended. The tram driver gesticulated that we should go further up the hill to another stop. We eventually found this stop, only to be met with a long queue for the tram. It was strange, as three trams were waiting to move on to this stop, but nothing was moving. It appears that the tram system does not have enough power, and at this time it was restricting the frequency of trams. I stuck my hand out to wave down a passing taxi, and fortunately it stopped. This saved us a long wait or the prospect of having to walk up the hill to the castle.

São Jorge Castle, sometimes known in English as Saint George's Castle, is located in the freguesia of Santa Maria Maior. Human occupation of the castle hill dates to at least the 8th century BC while the oldest fortifications on the site date from the 2nd century BC. The hill on which Saint George's Castle stands has played an important part in the history of Lisbon, having served as the location of fortifications occupied successively by Phoenicians, Carthaginians, Romans, and Moors, before its conquest by the Portuguese in the 1147 Siege of Lisbon. Since the 12th century, the castle has variously served as a royal palace, a military barracks, home of the Torre do Tombo National Archive, and now as a national monument and museum.

Description courtesy of Wikipedia