The iconic pyramid with an eye on top of it has been a long-standing source of speculation on the one dollar bill. It's a part of the United States' many traditions steeped in history and lore.

“The other [characteristic of a pyramid scheme], which I think applies the most, is those at the top benefit disproportionately, while those at the bottom often lose money or gain very little ...

The pyramid’s appearance is unusual, with the first 49 metres from the base having largely kept their smooth limestone casing built at a 54-degree angle before tapering off towards the top.