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. !>W _3Ea  
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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? % zHsh  
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this is the initial list I am working off: LRW7_XYz  
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london lPFT)>(+@  
paris Ho9 a#9  
Rome by,"Orpwq;  
Venice Rb\M63q  
Florence ? TXD\i Dq  
Viena k)oD  
Prague >y#<WB$i  
Berlin ? 6;i]v|M-  
Zurich c&z@HEzV7  
Madrid ? c7.%Bn,  
Lisbon ? %|bqL3)a_  
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too aggressive? B@D3aOvO  
D'2&'7-sm\  
Thanks in advance