A challenging read

I found this book to eb quite different to what I was expecting! I throrogh;y enjoy the author's writing style and some of the content, however I just cannot seem to get really interested in exploring underground man-made projects such as sewers and burial vaults etc etc. In fact I think it is just that I simply cannot bear to read about crawling and wiggling through the narrow and constricting bits and the smells and gunk he encounters! If anyone has read "London" about the deep history of the city and what lies beneath it in solid building and earthworks and in human stories and suffereing or wars etc, then it may seem strange to say that I loved that, but somehow feel that this author missed the boat somewhere along the line? Maybe he is rather self-absorbed and there is too much "I" in the book? But it is worth a read and certainly different.