You can auction it.
Zachys and
Hart Davis Hart are two big wine auction houses.
As an aside, anyone who hasn't been to a wine auction and likes wine should go. It's usually $50-100, includes lunch and tastings of many fine old wines, and it's fun to watch the bidding.
If you're not interested in paying the auctioneer's fees, I have a friend from high school who is a serious collector and may be interested in buying. PM me if interested.