Time Out says
Find out just how much the street can teach you about both your surroundings and yourself in this free three-hour session of walking and learning. During the first hour a guide will help you to sharpen your senses and start noticing things you never knew were there. The second hour is your own adventure as you explore the area with more awareness of your surroundings, and the third hour you'll rejoin the group to share your discoveries. Register for a place here.