The location here is Central Parkway -- the subway runs underneath it.

Cincinnati Subway

The Cincinnati Subway is a set of unused tunnels and stations for a rapid transit system beneath the streets of Cincinnati, Ohio. It is recognized as the largest abandoned subway tunnel in the United States. Construction took place in the early twentieth century, but the project was not completed so it never hosted a paying customer.^[2]

• http://en.wikipedia.org/wiki/Cincinnati Subway