His first tunnel trips inspired a lifelong fascination with exploring underground worlds, from the derelict subway stations and sewers of New York City to sacred caves, catacombs, tombs, bunkers, and ancient underground cities in more than twenty countries around the world. Underground is both a personal exploration of Hunt’s obsession and a panoramic study of how we are all connected to the underground, how caves and other dark hollows have frightened and enchanted us through the ages.In a narrative spanning continents and epochs, Hunt follows a cast of subterraneaphiles who have dedicated themselves to investigating underground worlds. He tracks the origins of life with a team of NASA microbiologists a mile beneath the Black Hills, camps out for three days with urban explorers in the catacombs and sewers of Paris, descends with an Aboriginal family into a 35,000-year-old mine in the Australian outback, and glimpses a sacred sculpture molded by Paleolithic artists in the depths of a cave in the Pyrenees.Each adventure is woven with findings in mythology and anthropology, natural history and neuroscience, literature and philosophy. In elegant and graceful prose, Hunt cures us of our “surface chauvinism,” opening our eyes to the planet’s hidden dimension. He reveals how the subterranean landscape gave shape to our most basic beliefs and guided how we think about ourselves as humans. At bottom, Underground is a meditation on the allure of darkness, the power of mystery, and our eternal desire to connect with what we cannot see.

    To be curious was to delve into matters that didn't concern you - after all, the original sin stemmed from a desire for forbidden knowledge. Through curiosity our innocence was lost.Yet this hasn't deterred us. Today we spend vast sums trying to recreate the first instants of creation in particle accelerators, out of pure desire to know. There seems now to be no question too vast or too trivial to be ruled out of bounds: Why can fleas jump so high? What is gravity? What shape are clouds? Today curiosity is no longer reviled, but celebrated.Examining how our inquisitive impulse first became sanctioned, changing from a vice to a virtue, Curiosity begins with the age when modern science began, a time that spans the lives of Galileo and Isaac Newton. It reveals a complex story, in which the liberation - and the taming - of curiosity was linked to magic, religion, literature, travel, trade and empire.By examining the rise of curiosity, we can ask what has become of it today: how it functions in science, how it is spun and packaged and sold, how well it is being sustained and honoured, and how the changing shape of science influences the kinds of questions it may ask.