Examine Daily and seasonal changes:

What a difference 1 day makes in Maine with my video:
http://www.youtube.com/user/geographyuberalles#p/search/0/1a6govm2TAY


What a difference 1 season makes, in West Virginia with my video:
http://www.youtube.com/user/geographyuberalles#p/search/1/P-GxtL8ZfSw

 

Other resources:  Fielder’s Colorado 2000 book where he revisits sites photographed by Wm Henry Jackson in 1879.

Or, examine hundreds of years of change in Rome, via:

http://vasi.uoregon.edu/

 

–Joseph Kerski