Places: Vibrant Chicago: Car4-copy

The Willis Tower anchors the southern end of downtown Chicago, and is the tallest building in North America. It's 110 stories cover 3.8 million square feet of retail and office space, and visitors to the 103rd floor skydeck can see Wisconsin, Indiana and Michigan.

The Willis Tower anchors the southern end of downtown Chicago, and is the tallest building in North America. It's 110 stories cover 3.8 million square feet of retail and office space, and visitors to the 103rd floor skydeck can see Wisconsin, Indiana and Michigan.