Concrete Road: Court Avenue, Bellefontaine, Ohio
Using concrete as a road surface was unheard of in the late 1800s, until George Bartholomew pioneered its use by paving in Bellefontaine, Ohio. Bartholomew learned about cement production in Germany and San Antonio, then moved to Bellefontaine because of the neraby deposits of limestone and clay, the two main ingredients in cement. He had to fork over a $5000 bond to convince the city council to let him pave the square around the town's courthouse, guaranteeing that the concrete would last at least five years.
To preserve the historic avenue, Bellefontaine closed the street to traffic in the late 20th century but reopened it because of the traffic and parking problems the closure caused. Court Avenue is still open to light-vehicle traffic, but a statue of Bartholomew at the end of the street keeps trucks off the concrete.