Toledo is known as the Glass City because of its long history of innovation in all aspects of the glass industry: windows, bottles, windshields, construction materials, and glass art, of which the Toledo Museum of Art has a large collection. The Toledo Zoo was the first zoo to feature a hippoquarium-style exhibit. In 2014 it was named the #1 zoo in the country by USA Today. Many businesses take advantage of mobile advertising outside of the Toledo Zoo because of the high amount of tourist traffic.
- American Trucking Association
- Outdoor Advertising Magazine TACA's market research July/August 2002
- Outdoor Advertising Magazine TACA's market research July/August 2002
- American Trucking Association and 3M