Stories in Stone: Travels Through Urban Geology torrent

Most people do not think to look for geology from the sidewalks of a major city, but for David B. Williams any rock used as building material can tell a fascinating story. All he has to do is look at building stone in any urban center to find a range of rocks equal to any assembled by plate tectonics. In Stories in Stone, he takes you on his explorations to find 3.5-billion-year-old rock that looks like swirled pink and black taffy, a gas station made of petrified wood, and a Florida fort that has withstood 300 years of attacks and hurricanes, despite being made of a stone that has the consistency of a granola bar