We are in London for a long weekend soon with DDs 11 and 9. One day we are seeing the Cursed Child. We are also splitting the visit so will be in Greenwich for part of it. We've been to London quite a few times so have seen most of the obvious places bar the Tower - is that worth the money? - I was wondering about the Shard, Madame Tussaud's, a boat trip - would be grateful for recommendations, thank you!