Pedestrian Tunnels

The most well-known network of pedestrian tunnels has been developed by the city of Montreal. This underground network has been created to allow inhabitants to circulate in the city during the winter, when temperature can go well below -20°C. This network has grown during the years and it is now a complete “underground city”.
Other pedestrian underground facilities in urban development have also been built in Monaco which hosts the largest network of underground elevators in the world.