<Li> British biographer, science writer, and novelist Ronald W. Clark published a book of man - made and natural wonders titled Wonders of the World, which lists 52 wonders, one for each week of the year . </Li> <Ul> <Li> Travel writer Howard Hillman published two books on the subject, one with 10 man - made wonders, and one with 10 natural wonders . </Li> </Ul> <Li> Travel writer Howard Hillman published two books on the subject, one with 10 man - made wonders, and one with 10 natural wonders . </Li>

Seven wonders of the world with name and pictures