5 Dollars - Charles III Captain America vs Thanos

Niue has issued Marvel-licensed legal tender since 2012, leveraging its status as a self-governing territory in free association with New Zealand to mint collectibles that will never see a cash register. This piece belongs to a long-running series of pop-culture bullion issues that the country produces almost entirely for foreign collector markets — Niue's own population sits around 1,600 people.

The 3 troy ounce format places it in the mid-tier of the series by size.