CarGo Audio Tours - Audio driving tour of the Niagara Falls area. 2CD set. - http://www.cargoaudiotours.com
Hear's a Journey - Day trip car tours through Tuscany, Italy and Provence, France. Package includes audio cassette and booklet with map and points of interest. - http://www.hearsajourney.com/
Museum of the Open Road - Cassette tapes and CDs provide a road-by-road account of interstate highways and history in northeast and central Ohio. - http://www.roadmuseum.org/
OmniNav - Sights of San Diego, Chicago, Washington D.C., Boston, New York, and London, using an audio cassette and map guide, or downloadable MP3 audio guides via paid subscription. - http://www.omninav.com/
Ride With Me - Large collection of original audio programs on travel in the United States with special emphasis on traveling interstate highways. - http://www.rwmaudio.com