Describe a crowded place you have been to. You should say: where the place is (or, was) when you went there with whom you went there and explain how you felt about this crowded place.

All my life I've been to many different places, but the most crowded place has to be Musée de Lourdes in Paris. The reason why this place is so vivid in my memories is that I was there during the holidays when it was packed with students from different parts of France and foreign countries. [...]