National Transit Building is a historic commercial building located at 206 Seneca Street, Oil City, Venango County, Pennsylvania. The main block was built in 1890, and is a four-story, stone and brick building. An adjacent annex building was built in 1896. The annex is connected by an enclosed bridgeway at the second, third, and fourth levels. The main entrance features a sandstone archway. I recently spoke with a National Transit tenant involved in the development of the arts (with keys in hand – see photo) who provided the following information: