This exhibit commemorates the 125th anniversary of the Great Chicago Fire (1871) with an array of primary sources arranged into two sections. "The Great Chicago Fire" examines the fire through five chronological chapters, while a second section, "The Web of Memory," focuses on the ways in which the fire has been remembered. This section presents the story through eyewitness accounts, popular illustrations, journal articles, fiction, poetry, and painting. It also examines the legend of Mrs. O'Leary.

The site furnishes galleries of images and artifacts, primary texts, songs, a newsreel, an “Interactive Panorama of Chicago, 1858," and background essays that explore the social and cultural context of the fire and its aftermath.

These 11 exhibits address the history of California and San Francisco. Topics include the Gold Rush of 1849; earthquakes of 1906 and 1989; the history of the city's fire department; construction of the Golden Gate and Bay Bridges; and the internment of Japanese Americans during World War II. These exhibits provide timelines and links to more than 200 primary documents and images, including newspaper articles, diary entries, oral histories, photographs, political cartoons, and engravings. Two exhibits are hyperlinked chronologies pertaining to San Francisco during World War II and the rock music scene in the city from 1965 to 1969.

Documents can be accessed according to subject, with more than 25 documents listed on the Chinese-American community, fairs and expositions, and labor issues. The site also contains more than 150 biographies of prominent San Franciscans.