2 Dollars - Elizabeth II Machu Picchu

Niue has operated as a prolific licensing hub for themed bullion coinage since the 1990s, issuing coins under New Zealand's currency umbrella while contracting designs to outside mints — this piece almost certainly produced by the Polish Mint in Warsaw, which has held the dominant share of Niue's silver program for years. The arrangement is straightforward: Niue provides the legal tender framework, the contracting mint handles everything else.

Machu Picchu was only formally inscribed as a UNESCO World Heritage Site in 1983 and named one of the New Seven Wonders in 2007 — the latter designation driving a sustained wave of commemorative issues from mints worldwide that has not meaningfully subsided.