London Mithraeum
An immersive underground archaeological site displaying the ruins of a Roman Temple of Mithras beneath Bloomberg's headquarters. Download their free interactive iPad guide on arrival - older kids can unlock the digital mysteries of ancient Roman London, younger ones will need to stay off the ancient ruins though!
Times change seasonally — always check before you set off.
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Tate Modern
Housed in a dramatic former power station on the Thames, this is one of the world's biggest modern art museums - and free to get into for the permanent collection, with tickets only needed for the big temporary shows. Kids gravitate to the vast, cathedral-like Turbine Hall, which regularly hosts huge, playful art installations perfect for running around in. Pick up a free drawing kit or sound-based family trail from the family desk at weekends, or join the daily free guided tours if the little ones can sit still that long. UNIQLO Tate Play runs family-friendly art activities every weekend, and there's a Baby Care Room if you're travelling with very young children. Cross via the Millennium Bridge from St Paul's for the most dramatic approach.
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Chronos One Escape Rooms
A cinematic, time-travel-themed escape game where the room reacts around you. Puzzles are logic-led rather than gory, so it works well for confident 10s and up and for teens who think they're too cool for museums.
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Swingers Crazy Golf (City)
The City branch of Swingers, a 1920s-themed indoor crazy golf venue with street food and bars. Children are welcome at family sessions only, so check the venue website before booking.
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Pitzhanger Manor & Gallery (And Mini Makers for tots)
Inside the Pitzhanger, the historic countryside retreat of architect Sir John Soane which is set within Walpole Park in Ealing, the main musem has contemporary art exhibitions, free digital family trails, hands-on building block stations, and access to Walpole Park's playground. On Fridays, under 5s will love the Mini Makers dedicated early years sessions, led by experienced artist practitioners, there's messy play, circus play and music and rhyme sessions. Pack a spare change of clothes - the messy play sessions mean business, and make a day of it with Walpole Park and its expansive green lawns, walled garden, and playground area.
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Wellcome Collection
A quirky museum exploring medicine, health and human life through bizarre historical objects, art and a wonderfully comfy Reading Room.
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The British Library (Family Trails)
Book-loving kids will enjoy an hour here among the world's most famous manuscripts, from the Magna Carta to Leonardo da Vinci's notebooks and Beatles lyrics, mostly in one ground-floor exhibition hall. There are free weekend family workshops too.
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