• A dazzling light show inspired by the Northern Lights – one of the seven natural wonders of the world – can be seen in the Guildhall Yard this December. Borealis – which can be seen between 11th and 22nd December – is the work of artist Dan Acher and is one of a number of light displays which is illuminating London this winter as part of Mayor Sadiq Khan’s ‘Winter Lights’ campaign. Others include an animal-themed display bringing to life the beasts that once lived at the Tower of London, an outdoor programme of installations and video art projections illuminating the Southbank Centre’s site, the ‘Illuminated River’ display lighting up nine of London’s bridges in what is be the longest public art project in the world, and a free Canary Wharf ‘Winter Lights Spectacular’ in January which will feature 20 new light commissions by some of the most innovative artists across the globe. In Grosvenor Square, Mayfair, thousands of illuminated white roses will form an ‘Ever After Garden’ designed by fashion designer Anya Hindmarch while traditional favourites like the Hyde Park Winter Wonderland as well as winter markets and ice rinks at locations like the Natural History Museum and Somerset House are also once again returning to the city. London’s red buses are an easy way to see the Christmas lights this year with routes 12, 94, 98, 139 and 390 all travelling through Oxford Circus. Free tickets to Borealis can be booked at www.visitlondon.com/Borealis while, for more on the best bus routes, see https://londonblog.tfl.gov.uk/festive-bus-routes/. For more information on all the light shows and events (some of which are already underway), see visitlondon.com    .

• Costumes worn by then Princess Elizabeth and her sister Princess Margaret in wartime-era pantomimes are at the heart of a new display at Windsor Castle this Christmas. The princesses spent much of their time at Windsor during World War II – away from the Blitz in London – and, between 1941 and 1944, they performed in and helped to stage a series of pantomimes to raise money for the Royal Household Wool Fund which supplied knitting wool to make comforters for soldiers fighting at the front. Six of the costumes they wore have been brought together for the first time and are being displayed in the castle’s Waterloo Chamber where the pantos were originally performed. The costumes on show were worn in the last two pantos – Aladdin, which was performed in 1943, and Old Mother Red Riding Boots which was performed in 1944. Also on show are 16 large scale pictures of fairy-tale characters that were pasted around the walls to create the space for the performances. Visitors to Windsor this Christmas will also see State Apartments decorated for the festive season and a 20 foot high Christmas tree in St George’s Hall. The Semi-State Rooms, created for King George IV and now used for official entertaining, are also now open to visitors. The costumes can be seen until 31st January. Admission charges apply. For more on the Christmas activities at Windsor, including a ‘Mary, Queen of Scots at Christmas Family Activity Day’ on 18th December, see www.rct.uk/whatson/. Meanwhile, Buckingham Palace is offering guided tours of the State Rooms over winter with special family guided tours available for the first time. The tours run until 30th January. Admission charge applies. For more on the guided tours, head here and for more on the family tours, head here.

• The ancient Greeks’ pursuit of knowledge is the subject of a new exhibition which has opened at the Science Museum in South Kensington. Ancient Greeks: Science and Wisdom takes visitors on a journey in which they will sail the perilous seas with a statue of Hermes that was discovered on a shipwreck off the island of Antikythera, experience the lost music of the aulos instrument through interactive displays and an exclusive video that reimagines its ancient sounds, and gaze at the starry cosmos through ancient Greek eyes via a beautiful and rare silver globe depicting the known constellations and a Byzantine sundial-calendar – the second oldest known geared mechanism in the world. The free display can be seen until 5th June. Tickets are required – to book head to sciencemuseum.org.uk/ancient-greeks.

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