Simplicity of modern design - Garden Expo in Stuttgart

Last weekend I was at the Garden Expo in Stuttgart. It disappointed me a little bit, but at least I had a chance to see Rothauspark, open only for Expo Visitors.
It is 28.000 m² of a green space extended between the exhibition halls. I admired the simple modern design of Stuttgart Exhibition Centre.

This up-to-date style of this place inspired me to searched in my surrounding a simple, plain structures. That is my result.