20 Dollars - Elizabeth II Shrine of the three Kings: 1/2

The Shrine of the Three Kings in Cologne Cathedral houses a gilded reliquary completed around 1225, long considered the largest and most elaborate medieval reliquary in existence. It claimed to contain the bones of the Magi, relics acquired by Holy Roman Emperor Frederick Barbarossa after the conquest of Milan in 1164 — a politically calculated transfer that transformed Cologne into one of the most important pilgrimage destinations in northern Europe for centuries.

The "1/2" in the title indicates this piece is the first half of a two-coin set, a format Cook Islands used repeatedly for oversized silver issues around this period.