The Chicago Architecture Foundation CAF are skyscraper buildings, it is a charitable social association situated in Chicago, Illinois, United States, whose mission is to rouse individuals to find why configuration matters. It is known for its open visits and projects, most eminently the docent-drove design journey on the Chicago River, and different visits in the Chicago zone. CAF is additionally known for its scale model of downtown Chicago. CAF's waterway voyage is positioned in the main ten visits in the U.S. CAF offers roughly 85 distinct voyages through the city. All visits are driven via prepared volunteer docents who experience a 14-week instructional class before being affirmed to lead CAF visits.