Can you imagine having a gigantic prehistoric mastodon skull in your living room? Talk about the mother of all conversation pieces. Whether you’re discussing how this piece is one of the classic samples from the Pleistocene epoch or just how bad your taste in interior design is, this piece is a rare find.

Now, is it worth $500,000? As the saying goes, “one man’s garbage is another man’s treasure.” If you’re heavy into archeology, then this is surely an opportunity you don’t want to let slip away. Or, if you’re a filthy rich playboy with a philanthropic side, buy it and donate it to your favorite museum. Don’t have a favorite museum? Buy a building and start your own museum with this mastodon skull as your first piece.

The choice is yours, bid here.