This was my third visit to Chicago, and every time I've wanted to go on an architecture tour. And this is the trip when I finally achieved my goal. I went on the boat tour with the Chicago Architecture Foundation, and the guide talked about nearly every building on along the river. It's all a marvel of achievement, and what I was struck by is the fact that these skyscrapers are still being built even today. Like Studio Gang Architects' Aqua, completed in 2010. Interestingly, it's the largest project ever awarded to an American firm headed by a woman and the tallest building in the world from a female lead architect. Although the recession is obvious too, thanks to a giant hole in the ground where Santiago Calatrava's Chicago Spire should be.