Large book of the underground world

What is hidden there, where can we not look? Why do you need the soil? How old is our planet? What treasures are hidden in the bowels of the Earth? "The big book of the underground world" is a storehouse of useful information, entertaining facts and fascinating stories. In it, young researchers will find answers to many questions from the field of geology and archeology, history and mythology. Under each large illustration, another secret is hidden, on which you will see how the caves are arranged and who lives underground, how they work in mines and what in the cities underground, in addition to the metro and parking lots, there are also sports centers and museums. Open more likely - an exciting journey is waiting for you directly to the center of the Earth.
This amazing book is great for children 7-12 years old