Pittsburgh

Downtown Walking Tours.  Although commercialized, this site does give an interesting perspective on several downtown Pittsburgh districts.  Included are nice oblique maps of the districts.  Created by the Post-Gazette.  [ccr]
http://www.post-gazette.com/pg/06121/689535-37.stm#navmap

Historic Districts.  Tours of three historic Pittsburgh neighborhoods, Mexican War Streets, Manchester, and Allegheny West. Includes maps and a few photos.  From the Department of City Planning.   [ccr]
http://www.city.pittsburgh.pa.us/wt/html/historic_districts_of_pittsbur.html

Bridging the Urban Landscape.  A series of tours and essays, with some photos, focusing on historic events, people, and neighborhoods in Pittsburgh.  Created by the Carnegie Library of Pittsburgh.   [ccr]
http://www.carnegielibrary.org/exhibit/tours.html

Digital Atlases, Searchable Digital Archives, and Other Sites Useful for Exploring Places

Historic Pittsburgh.   A collection of maps, books, images, and census information.   Includes a chronology of Pittsburgh from 1717 to 2004.  From the Digital Research Library of the University of Pittsburgh.   [ccr]
http://digital.library.pitt.edu/pittsburgh/