In Xanadu By William Dalrymple

While waiting for the results of his college exams, William Dalrymple decides to fill in his summer break with a trip. But the vacation he plans is no light-hearted student jaunt - he decides to retrace the epic journey of Marco Polo from Jerusalem to Xanadu, the ruined palace of Kubla Khan, north of Peking. 
For the first half of the trip he is accompanied by Laura, whom he met at a dinner party two weeks before he left; for the second half he is accompanied by Louisa, his very recently ex-girlfriend. Intelligent and funny, "In Xanadu" is travel writing at its best.