Sip a Mimosa & Explore Kilmer Mansion! The Kilmer Family splashed their name across the Binghamton and were known around the world. Built in 1898 for the Kilmer Family, Kilmer Mansion is part home and part castle. Whether you’ve always wondered what the inside of the Mansion looks like, or you just can’t wait to experience it again, a visit during ‘Mimosas at the Mansion’ is a great way to explore the history and architecture of the magnificent Kilmer Mansion. After you have explored all three levels – relax with us in the Grand Parlor or Garden for more mimosa sipping! $5 (cash) for each additional mimosa. *The first floor of Kilmer Mansion is accessible; however, floors two and three are reached only by using the stairs *21 or older to attend