They also just finished a big one by I-95 in Jacksonville, FL. It was started several years ago and seemed to stall, but then it suddenly resumed about a year ago and is obviously now completed.
Are you sure the Toledo mosque has been there for decades? They really seem to have gone into high gear on the mega-mosques only after 9/11 (after this date, they also bought up lots of large properties that they reworked as mosques, such as the old Houston Federal Courthouse).
About Islamic Center of Greater Toledo
"In 1978, forty-eight acres of land was purchased in Perrysburg Township. The foundation of the Center was laid in October 1980, while the actual construction did not begin until September 1982. The building was officially opened on October 22, 1983. Two wings were added in 1991 to accommodate increased enrollment in the weekend school and to expand the social hall facility."