Geologist Jan Zalasiewicz takes the reader on a fascinating trip one hundred million years into the future--long after the human race becomes extinct--to explore what will remain of our brief but dramatic sojourn on Earth. He describes how alien geologists in the far future might piece together the history of the planet, and slowly decipher the history of humanity from the traces we will leave impressed in the rock strata. What story will the rocks tell of us? What kind of fossils will humans leave behind? What will happen to cities, cars, and plastic cups? The trail leads finally to the bones of the inhabitants of petrified cities that have slept deep underground for many millions of years. As thought-provoking as it is engaging, this book simultaneously explains the geological mechanisms that shape our planet, illuminates the various ingenious ways in which geologists and paleontologist work, and offers a final perspective on humanity and what we will leave behind.