Over-the-Rhine

Over-the-Rhine, sometimes abbreviated OTR, is a neighborhood in Cincinnati. It is believed to be the largest, most intact urban historic district in the United States. Over-the-Rhine was added to the National Register of Historic Places in 1983 with 943 contributing buildings. It contains the largest collection of Italianate architecture in the United States, and is an example of an intact 19th-century urban neighborhood. It was developed at a time of a high rate of German immigration to Cincinnati, and became the heart of its ethnic German community for decades. When Old St. Mary's Church opened here in 1842, it was the largest church in the Ohio Valley.