This trip to Cambridge includes a guided sightseeing tour with a local guide, and allows for plenty of free time to immerse yourself in the history of this city.  You will be spoiled for choice during your time there. Choose between exploring the many colleges, walking along the River Cam, or, for a real treat, hire a punt and explore the river yourself.  Alternately, make a visit to the Trinity College Library, designed by Christopher Wren, which has Newton’s "Principia Mathematica" on permanent display. You'll also find on display a manuscript of the much-loved "Winnie the Pooh", written by A.A Milne. His son Christopher Robin also studied at the college.