As above, the museums are brilliant, I’ve been in the Museum of London, V&A, Science, Natural History, National Maritime, Imperial War, along with the Cutty Sark, Tate Modern, Tate Britain, National Portrait…
I was in the Nat.His on Sunday for the Wildlife Photographer of the Year exhibition, and went round the dinosaur and bugs exhibitions as well, loads of kids there, really enjoying it, but it’s a whole afternoon, really, and you won’t see much of the city at all, so I would stick with outdoor sight-seeing. That’s the great thing about London Village, there’s so bloody much of it to see!
While The Shard is fairly pricey, if the weather’s clear, you can see a fantastic amount of London and beyond, and it’s one attraction I can recommend as a ‘once-in-lifetime’ visit.
Oh, and while I always use the Tube, I even have an Oyster card despite living a hundred miles away, I would suggest that you use the buses, the Tube can be very busy, and crowded, and the little ones might well find it cramped and a bit claustrophobic if it’s really crowded.
Having said that, one quick trip on the Tube can be fun, if they’ve never been on it before. 😀