• Open House London is finally here with some 800 buildings across the city – some of them rarely accessible to the public – open for free this weekend, from grand historical institutions and modern skyscrapers through to ‘green’ schools, engineering projects, parks and gardens, and private homes. The weekend – which is being run this year under the theme of ‘revealing’ – also includes a programme of walks, engineering and landscape tours, cycle rides, a bus tour, childrens’ activities and expert talks as well as a moonlit ‘culture crawl’ through London on Friday night and into Saturday morning (a fundraiser for Maggie’s Centres). Among the buildings opening their doors in the festival – created by London-based architecture organisation Open-City – are the ever popular 30 St Mary Axe (aka ‘The Gherkin’), the Foreign and India Office in Whitehall, the Bank of England, Portcullis House and City Hall along with everything from The Leadenhall Building (aka ‘The Cheesegrater’ – pictured), and Temple Church in the City to the Admiral’s House in Greenwich, the Dutch Embassy in Kensington and the steam coaster, the SS Robin, in Tower Hamlets. As mentioned in a previous week, some visits required pre-booking so make sure you check the programme before heading out. For a full copy of the programme of events, see www.londonopenhouse.org. PICTURE: © R Bryant.

• A major new exhibition focusing on China during the “pivotal” 50 years of Ming Dynasty rule between 1400-1450 opens at the British Museum in Bloomsbury today. Ming: 50 years that changed China features some of the finest objects ever made in China – loaned from institutions in China and elsewhere – as it explores some of the “great social and cultural changes” that saw Beijing established as the capital and the building of the Forbidden City. It includes objects from the imperial courts along with finds from three regional “princely tombs”. Four emperors ruled during the period and the display will feature the sword of Yongle Emperor, “the warrior”, the handwriting of the Hongxi emperor, “the bureaucrat”, the paintings of the Xuande emperor, “the aesthete”, and portraits of the regents who ruled while the Zhengtong emperor was a boy. The exhibition runs until 4th January. Admission charge applies. For more, see www.britishmuseum.org.

• The work of 19th century artist John Constable and its debt to 17th century masters is the focus of a new exhibition opening at the V&A on Saturday. Constable: The Making of a Master – which features more than 150 works including celebrated pieces by Constable like The Hay Wain (1821), The Cornfield (1826) and Salisbury Cathedral from the Meadows (1831) as well as oil sketches, drawings, watercolours and engravings – will juxtapose his works with those of 17th century landscape masters like Ruisdael, Rubens and Claude. Among those of their works on display will be Rubens’ Moonlight Landscape (1635-1640) and Ruisdael’s Windmills near Haarlem (c.1650-62). The exhibition runs until 11th January. Admission charge applies. For more, see www.vam.ac.uk/constable.

• And don’t forget, Totally Thames continues to run throughout this month which an extensive programme of river-related events. Those on during the coming week include Londonist Afloat: Terrific Tales of the Thames, a series of discussion sessions on aspects of the River Thames being held aboard the HMS President and London’s River – The City’s Ebb and Flow, a guided walk along the river (held on every Saturday and Monday during September), and Hospital and Troop Ships – Transporting the walking and wounded in the First World War, an exhibition held aboard the HQS Wellington (open Sundays and Mondays in September). For the full programme of events, see www.totallythames.org.

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