Help needed! what to see in Europe with kids

I am taking my two daughters to see Europe first time this summer, most likely flying into London and hop on Eurail. two weeks is about what I can afford. -RQQ|:O$  
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I have noticed that a number of you are from Europe, can you please offer some suggestions on how best to plan our trip? what will be interesting for girls around 10 years old? qu+2..3  
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this is the initial list I am working off: Ue:T3jp3%  
B[ ka@z7  
london s[4!R&b  
paris E(_I3mftm  
Rome T+h {Aeg  
Venice qXGLv4c`Q  
Florence ? zEfD{I  
Viena neFno5dj  
Prague H>iZVE  
Berlin ? vPNZFi-(  
Zurich MToQ8qKs  
Madrid ? iQC&d_#  
Lisbon ? [frD L)  
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too aggressive?
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Thanks in advance