A little over 20 years ago, a major entertainment center was in the works in Rossford near the I-75 and the Ohio Turnpike interchange which was billed as the 'Crossroads of America'. It was to have a 12,000 seat arena and a 15,000 seat outdoor amphitheater. The arena was to replace the aging Toledo Sports Arena and bring a large outdoor concert venue to the area. Unfortunately the financing for this ambitious project fell through after construction had already began which led to the abandoning of the project in 1999. Finally in 2008, the half built arena/amphitheater was razed, but not before a lot of photos were captured of the project which you can check out here: http://abnf.co/OH-abandoned_outdoor_auditorium.htm and another cool aerial shot here: http://www.detroiturbex.com/content/outside/oh_rossford/index.html
Had this project gone through, we might not have the Huntington Center in downtown Toledo. Original plans for the Rossford Arena was to bring a Detroit Red Wings AHL affiliate team to the area. Instead, the Toledo Storm were replaced with the Toledo Walleye which remained in the ECHL, Despite a slighltly smaller arena in downtown, I think we have done pretty well with our Toledo Walleye, although a larger outdoor amphitheater in the area would have been nice.