And includes a ton of risks the moment you need to move it across any border or to hide it under a government that went full Nixon and is on search and destroy mode (and with 2018 technology your bullions will be easily found).
With top and reputed gold and silver/bullion dealers who have storage vaults in many countries/overseas, you can store your gold and silver bars and coins outside the banking system in your full name [includes insurance]. you can access your account and buy and sell gold and silver anytime you want.
These are reputed international gold and silver/bullion dealers. One of them I know has $2,000,000,000 worth of customers bullion.