One of my favorite places in Chicago is The North Park Nature Center. It is a huge expanse of land in the middle of the city with all sorts of hills, prairies, and ponds.
There is one spot there I like the most-- on a bridge over a wetlands area with a bank of trees on a slight incline. In the fall of 2003 I went there 4 times in a month to take the exact same pictures in the exact same position so I could see the changes in the on that panorama. With the glories of Flickr egging me on, I finally got around to publishing these photos from September 10, October 2, October 6, and October 11, 2003 as well as February 25 and March 30, 2004.
Here's a comparative look at all panoramas.
Here's the description of the Nature Center from the City of Chicago:
North Park Village Nature Center is located on the northwest side of Chicago and includes a forty-six acre nature preserve and also an educational facility. The Nature Center and preserve are situated within the North Park Village complex, a cluster of buildings located on approximately 155 acres of land.
The nature preserve features trails that wind through woodlands, wetlands, praire and savannas. A discovery room, a hands-on table of natural objects and interactive displays are highlights of the Nature Center. Programs offered include public programs for pre-schoolers, school age children, families and adults; an eco-explorers summer camp and outreach programs.