Luoghi segreti a due passi da Roma vol.2

25 unusual itineraries mainly in the northern and eastern areas of Rome. Second of three volumes dedicated to the discovery of unusual and unknown places in the capital: waterfalls, ravines, sinkholes, lakes, ancient tunnels and thermal phenomena. A new way of hiking, of knowing and enhancing the area surrounding Rome. In this volume: lakes, towers, ravines and sinkholes, the works of man. Martignano, Torre Baccelli, Forra del Treja, Mola di Formello, Inviolata Lakes, Cave di Salone, Lake Vallerano, Valle dell'Arrone.