A lot of wealthy individuals "park" their money in things like real estate and art. For the art, they safely pack it away in warehouses. There's a whole industry that'll do it for you. A lot of them dont even see the art. It's just a wealth parking vehicle.
Another avenue is starting one or more non-profits and philanthropy organizations for the money.
And another is a living trust, to avoid probate when you die, to maximize the inheritance for your surviving beneficiaries.