Q: Which downtown Chicago Starbucks store is not furnished with the standard Starbucks corporate furniture?
A: Merchandise Mart. The Merchandise Mart Starbucks (222 West Merchnadise Mart Plaza) is kitted out with furniture by one of the furniture designers located in the 'Mart. Specifically, Ebel Incorporated in suite 15-121. The 'Mart's Starbucks is such a landmark in the massive building that the eastern set of elevators are officially signed "Starbucks Elevators."
As an aside, I have changed my mind about which Starbucks is the world's coolest. I used to think it was the one at Two ifc in Hong Kong (always written in lower case), where the chairs have an amazing panoramic view of Victoria Harbour.
Recently, however, I found myself in the Starbucks at the Columbia Center in Seattle. It's in the 40th floor sky lobby with amazing views of the city and Puget Sound.
You can see more Hong Kong architecture at our sister site, Asian Architecture Info.
You can see more Seattle architecture at our parent site, Glass Steel and Stone.