This booklet invites to an unprecedented discovery of the 5th arrondissement of Paris, located on a small limestone plateau well protected at the end of a gulf. The reader will learn the astonishing coexistence between the walls of two stories, human and geological. The route, shown at the beginning of the booklet, stops over 11 main points, revealing the history of the capital through the description of the origins and uses of the stones that make the buildings, monuments and paved streets.
The walker will discover the different types of rocks as well as the fossils and minerals they contain. Anecdotes and architectural details previously gone unnoticed, will shed new light on the City of Lights.