This weekend was devoted to Free Library Festival. I am still amazed by living in Center City where all my favorite places are within a walking distance! First, I stopped at Natural History Museum and listen to several presentations of the environmental scientists. One of presentation was on finding a chloride in the water. It was actually nice to see that the level of a chloride in a local water was normal. Next, I stopped at "Butterflies!" exhibition - that is truly enchanting experience - so many beautiful creatures ! Some of them didn't mind posing on my hand. Maybe, next week I will visit the exhibition again, since during Museum Week (April 27-May 3) there is no additional fee for "Butterflies!"
Although I w

