The Turbine Hall


Tate Modern's vast central hall – which used to house the enormous machinery to generate all the energy in this former power station – is the perfect children's playspace. As long as you're ok with your children playing on concrete. Every October, they open a massive new installation with lots of activations for young ones, and at other points in the year you'll be able to find things like painting workshops that kids can get involved in. And if it's empty, well, it's roly poly time, obviously.
Why it's good for kids: It's London's biggest (and hardest) playground.