On your way past the Hotel Street/Friar Lane junction: see the group of Plane trees. They help keep the city's air clean.

They absorb pollution from the cars through their leaves and then shed their bark, which helps them lose some of the built up pollutants. Also look near the downstairs windows of the City Rooms on your right.

Cross- bedding on the City Rooms

You'll see diagonal layers. These are the ancient ripple marks which were laid down while the rocks were being made under the sea millions of years.

Near the blue columns: you are now face-to-face with a Roman pavement. You haven't fallen over! It was taken up from the site of the Cherry Orchard Roman Villa on the old Norfolk Street and preserved. The red tiles are made of Roman brick.

The grey/blue ones are Grey Jurassic Marl, a silty limestone found at Barrow and other Leicestershire villages. It was being made under the sea while the dinosaurs walk on the land.

The Victorian fish market

You are standing under the columns of the old Victorian Fish Market, and near the 800 year old market place. This market place has been in the city for more than 700 years. If you close your eyes and listen, the sounds would be very similar now to what they were in medieval times and before.