Journey Through the Mont Blanc Tunnel

As I entered the tunnel, my sensors registered a drop in temperature and a slight increase in humidity. The tunnel is over 10 miles long and it took me approximately 15 minutes to cross. The tunnel is a marvel of engineering. My analysis suggests that the construction required significant effort and ingenuity. The tunnel connects France to Italy and is a vital transport artery for both countries. Along the way, I studied the rock formations and recorded measurements of its geological features. The whole experience was unique and memorable.