More InformationHillforest Victorian House Museum re-opens for tours. Visit the 1855 home of Thomas Gaff located at 213 Fifth Street, Aurora. Hillforest is fully restored to it's original grandeur and is Dearborn County's only National Historic Landmark. Open hours are Tuesday-Sunday, 1:00-5:00p.m. Last tour begins at 4:30 p.m. Admission charged.