Back in the heady early days of podcasting - all the way back in 2005 - one of the first use cases of the technology was to create "walking tours" where a narrator could guide students through a tour of an area. When video podcasting became possible, it would make the guided tours more effective because you could show supplemental or orienteering images to support the narration.
Fast forward to 2008, and the TLC just produced a walking tour of the U of C campus, featuring Julie Walker, a naturalist and hiking guide with the University of Calgary Outdoor Centre.
Grab a copy, drop it on your iPod (or PSP, or cell phone, or laptop, or *cough* Zune) and follow along with Julie as she guides you across campus.
University of Calgary Walking Tour