One of my all time favorite loves is the concept of a thing within a thing. Nesting and containing. This is likely because I spent half my child life up trees or building tents out of tables or reading books under covers. These days I most especially love architecture within architecture...and here is an amazing entry to that category!
The House Cafe is in the Kanyon Shopping Mall in Istanbul, Turkey. Designed by Turkish design firm Autoban to integrate with and sit within the mall's original architecture. What do you think? (Beyond the obvious initial delight of "Yes! I want to go have lunch in a greenhouse!")