Surveys the early subways of London, Paris, New York, and other cities of the nineteenth century and examines how they were built and those responsible for their construction.
Examines the physical characteristics and conditions of Saturn, describing its position in relation to the sun and other planets and surveying humanity's attempts to penetrate its mysteries.
Describes the planet Earth, exploring its composition, early ideas about its shape and position in the solar system, current theories about its creation, and its important relationship with the moon.