A blockbuster exhibition at the National Gallery traces the travels of Albrecht Dürer (1471-1528), the ‘Apelles of the black line’ as Erasmus called him. These journeys were principally to cities along the Rhine (1490-4), twice to Venice (1505-7), and the Netherlands (1520-21). No other artist has produced a comparable body of work from the experience of travel. Like the landmark self-portrait of 1500, which evokes Christ (above) Durer’s art signals a self-awareness that crosses frontiers.

In 1799 Thomas Bruce, the Seventh Earl of Elgin, was appointed ambassador by the British government to the Ottoman Court of Turkey, which at that time ruled Greece. Within twenty years of his appointment many of the carvings from the Parthenon, the Temple of the goddess Athena, were transported to London. These used to be referred to as the Elgin Marbles but are now normally called the Parthenon Marbles in honour of where they came from and not who was responsible for bringing them to London. The marbles can be seen in the Duveen Gallery of the British Museum, which has been open since 1962.