It's almost too much to take in. There is the structure of it all, the amazing glass houses with their lacey geometric framework and arches and angles. Each room is a little different, inviting compare and contrast and begging you to make your way back around again to see how an element is done in another room. Just the nerve of people to defy the climate and its weather to grow tropical ferns and desert succulents indoors in Chicago is inspiring. It is sort of a celebration of engineering and industry and science and ideas and beauty all wrapped into one destination. And it is warm and humid on a cold day in February. A refuge from the winter and the traffic, a place where the noise is from steam creaking the radiators and hissing through pipes and maybe of children's voices if you are there on the day of a field trip from somewhere. I've been there many times and yet, each visit brings new discoveries and a renewed sense of awe at the diversity and natural beauty of the world we live in, this lovely planet Earth.