• A landmark exhibition on the work – and times – of JMW Turner opens at the Tate Modern in Millbank today. Turner’s Modern World features some 160 works and attempts to show how the landscape painter found “new ways to capture the momentous events of his day, from technology’s impact on the natural world to the dizzying effects of modernisation on society”. Highlights include war paintings such as The Battle of Trafalgar (1806-8) and Field of Waterloo (1818), works capturing political events like The Burning of the Houses of Lords and Commons (1835) and maritime disasters like A Disaster at Sea (1835) and Wreck of a Transport Ship (c1801), as well as works related to the industrial advances taking place such as Snow Storm (1842), The Fighting ‘Téméraire’ (1839), and Rain, Steam and Speed (1844). Admission charge applies. Runs until 7th March (online booking required). For more, see www.tate.org.uk.

• An exhibition at the National Army Museum in Chelsea marks the 100th anniversary of the Unknown Warrior being laid to rest in Westminster Abbey. Using objects, paintings, photography and personal testimony, Buried Among Kings: The Story of the Unknown Warrior tells the story of the creation of this symbolic memorial dedicated to the hundreds of thousands of British servicemen who died during World War I. Highlights include a union flag on loan from the Railton family (it was Chaplain David Railton who conceived the original idea for an Unknown Warrior following an encounter in 1916 with a wooden cross on the Western Front which was inscribed ‘An Unknown British Soldier’), a Bible carried by Chaplain George Kendall during the selection of the Unknown Warrior, a fragment of the original wooden Cenotaph erected in 1919-1920, and Frank O Salisbury’s large scale painting, The Passing of the Unknown Warrior, which depicts the procession of the Unknown Warrior from Victoria Station to Westminster Abbey. In connection with the exhibition, Victoria Station is hosting a pop-up display between 9th and 16th November on the journey of the Unknown Warrior from the Western Front to Westminster Abbey (the coffin actually arrived in London on 10th November, 1920). Admission charge applies (at Chelsea). Runs until 14th February (online booking required). For more, see www.nam.ac.uk.

• Model making in the “age of the railways” is the subject of a free exhibition now on at the Science Museum in South Kensington. Brass, Steel and Fire features intricate models from the Science Museum Group Collection as well as stunning miniature locomotives and a display of almost 200 tools used by model-maker Keith Dodgson. Highlights include ‘Salamanca’, the world’s oldest model locomotive (on loan from Leeds Museums and Galleries), a model of ‘Fire King’ – made in the 1840s by apprentice Josiah Evans who used his experience to later build full size locomotives, and the world’s oldest working model steam engine, the Etherley winding engine model. The exhibition is free and runs until 3rd May. Online booking required. For more, see sciencemuseum.org.uk/see-and-do/brass-steel-and-fire.

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