Allison Mansion

Allison Mansion, also known as Riverdale, is a historic home located on the campus of Marian [University (Indiana)|Marian University] at Indianapolis, Indiana. It was built between 1911 and 1914, and is a large two-story, Arts and Crafts style red brick mansion with a red tile roof. The house features a sunken conservatory, porte cochere, and sunken white marble aviary.
The house was built by businessman and auto racing pioneer James A. Allison.
It was added to the National Register of [Historic Places] in 1970.