Saturday 30th July 2016, 2.40pm (day 1,801)
The River Tagus (in Portuguese, Rio Tejo) rises in Spain and flows west, splitting Portugal in half as it heads for the Atlantic. A few miles from the ocean, the estuary becomes very broad, but then narrows again, making an excellent natural harbour and explaining why there has been a city here since antiquity. In the background of this shot is the Torre de Belém, one of Lisbon’s most famous buildings.
Being 42 