10 Dollars - Elizabeth II Upper Castle of Lutsk

Lutsk Castle — properly the Lubart Castle — is one of the best-preserved Gothic fortresses in Ukraine, built primarily by Lithuanian Prince Lubart in the 14th century over an earlier Volhynian stronghold. Cook Islands issued a wave of small-denomination gold miniatures around 2009 under licensing arrangements that had little to do with the sites depicted; the islands themselves had no political or cultural connection to medieval Volhynia.

At one gram of .9999 fine gold, these pieces were aimed squarely at the bullion gift market, produced by a European private mint under Cook Islands' monetary authority.