Like many small European cities, Lille, France is a charming wonder where colorful and interesting architecture abound in plenty. What stands out is the use of brown and red bricks. The buildings are more attached to one other like is typical across small town Europe. It is the fourth largest city in France. You can take the EuroStar – the fast train – from London to reach Lille, which is about an hour or so away from Paris. It has a population of just over a million. Louis Pasteur was from here and a research institute named after him is located here.