Four buildings are listed on the
National Register of Historic Places:
Hale Hall (originally Enarson Hall),
Hayes Hall,
Ohio Stadium and
Orton Hall. Unlike earlier public universities such as Ohio University and Miami University, whose campuses have a consistent architectural style, the Ohio State campus is a mix of traditional, modern and postmodern styles. The
William Oxley Thompson Memorial Library, anchoring the Oval's western end, is Ohio State library's main branch and largest repository. The Thompson Library was designed in 1913 by the Boston firm of Allen and Collens in the Italianate Renaissance Revival style, and its placement on the Oval was suggested by the Olmsted Brothers. In 2006, the Thompson Library began a $100 million renovation to maintain the building's classical Italian Renaissance architecture. == Current buildings and facilities ==