• A special photographic display has opened at Buckingham Palace this week to commemorate the fact that Queen Elizabeth II has this week become Britain’s longest-reigning monarch. The outdoor photographic display Long To Reign Over Us features a selection of photographs spanning the period from 1952 to today including informal family moments, official portraits and visits of the Queen to places across the UK and Commonwealth. Highlights include a black and white portrait by Dorothy Wilding from the start of the Queen’s reign in 1952, Cecil Beaton’s official Coronation Day portrait from 1953 and a 2006 image of the Queen with her Highland Ponies. The displays, which are also being shown as Windsor Castle and the Palace of Holyroodhouse in Edinburgh, can be seen by visitors to Buckingham Palace’s summer opening until 27th September. Admission charge applies. For more, see www.royalcollection.org.uk. PICTURE: Dorothy Wilding. Royal Collection Trust/© William Hustler and Georgina Hustler/National Portrait Gallery, London 

• Still celebrating the Queen becoming Britain’s longest reigning monarch, and a new film installation celebrating the reigns of Queen Elizabeth II and Queen Victoria – whose reign she has now surpassed – has opened at Kensington Palace. The film installation explores key moments in the reigns of both – coronations, weddings, births as well as other key moments in their public lives –  and also examines the impact of new technologies in the reigns of both queens. For more, see www.hrp.org.uk/kensingtonpalace.

• Richmond Park in London’s south-west is holding its annual open day this Sunday with a range of activities for kids including pony rides, the opportunity to see inside a bug hotel with a fibro-optic camera and the chance make pills in a restored Victorian pharmacy. The Holly Lodge Centre, normally reserved for schools and learning groups, will open its doors to the general public will be at the centre of the day, offering a range of activities for children while there will also be a guided walk led by the Friends of Richmond Park, vintage car displays, and a World War I re-enactment. The day runs from 11am to 4pm. Entrance to the Royal Park is free but parking is £5. For more, see www.royalparks.org.uk.

• This Saturday is Redhead Day UK 2015 and to mark the occasion, the Guildhall Art Gallery in the City of London is inviting visitors to celebrate by taking a selfie with Dante Gabriel Rossetti’s iconic redhead La Ghirlandata. Painted by Rossetti in 1873, the artwork, said to be one of the finest pre-Raphaelite works in the world, is on permanent display at the gallery. The painting features on the cover of Jacky Colliss Harvey’s new book Red: A Natural History of the Redhead, three copies of which will be given away in a special draw at the gallery. Entry is free. For more, see www.cityoflondon.gov.uk/things-to-do/visit-the-city/attractions/guildhall-galleries/Pages/guildhall-art-gallery.aspx.

• A six metre high ceramic installation created for the V&A by artist Barnaby Barford has gone on display in the museum’s Medieval & Renaissance Galleries in South Kensington. The Tower of Babel is composed of 3,000 small bone china buildings, each of which depicts a real London shop. Bamford photographed more than 6,000 shopfronts in the process of making the work, cycling more than 1,000 miles as he visited every postcode in London. The work can be seen until 1st November. Admission is free. See www.vam.ac.uk.

Send all items for inclusion to exploringlondon@gmail.com.