Historic Indiana.  A stroll along Sixth Street. Photos and short descriptions of 21 historic buildings compiled by the Historical & Genealogical Society of Indiana County.  [ccr]
http://www.rootsweb.com/~paicgs/walking/walkingtour.shtml

Historic walk through Smethport. Visit Planet Smethport to participate in a neat ineractive historical geography Website.  Move from photo to photo via various historical paths through Smethport and nearby communities.  The site has several map-based explorations, and great photos throughout.  Scroll down on the front page to discover alternative starting points for your tour.   This site takes a few mintutes to figure out, but it is well worth the time. [ccr]         
http://www.smethporthistory.org/index.htm 

Urban Renewal and the Changing Face of Lancaster.  The history of urban blight and urban renewal with interesting photos and maps.  Organized by David Schuyler, presented by Franklin & Marshall College.  [ccr]  
http://server1.fandm.edu/departments/AmericanStudies/faculty/schuyler/urbanrenewal/exhibittitle.html 

Murals of Elizabethtown.  A brief tour featuring photos and descriptions of numerous murals.  A Mural Program has been established there to stimulate interest and pedestrian traffic in downtown Elizabethtown.  [ccr]
http://www.etownmainst.com/iepages/mural.htm

Alternative futures for Monroe County.  A comprehensive site evaluating human and environmental conditions of the past and speculating on the future, from the Harvard University Graduate School of Design.
http://www.gsd.harvard.edu/research/projects/la/monroe/01.htm

Horseshoe Bend.   Visit this famous railroad curve through scenes and train photos, along with a map and aerial photo.  [ccr]
http://www.northeast.railfan.net/horseshoe.html

Mount Union Yards.  Map-based tour of this historic railroad yard, with links to other parts of the East Broad Top Railroad, "the last original narrow gauge railroad east of the Rockies and the oldest surviving narrow gauge in America."  [ccr]
http://www.spikesys.com/EBT/Tour/muyard.html

Upper Allegheney Information.   Although this site is a portal, containing links to other sites, it does include basic information about the region.   Created by georaphers at Clarion University.
http://eagle.clarion.edu/~grads/alleghenyhub/