The perfect London guides for children

A wonderful book which describes the sights of London lovingly prepared and is exciting for children. Katie and Jack are out of the lion who comes to life through his personal London. It is nothing important left out (Tower, Buckingham Palace, St. Paul's Cathedral, ride in the red bus ...) and the children learn interesting details about London, to see detailed images and feel with.
The book can be wonderfully easy from English to German translate without interruption in the flow of reading. My nephew Luke (5 years) said: "Will you buy me the next visit to London the book, where the lion Katie even more interest shows?" And Laura (3 years) recognized it in the newspaper the Tower Bridge ...
A really recommendable "souvenirs" from London or the perfect preparation for it.