The image shows the exhibition of various artefacts of the cathedral treasure in the west gallery of St. Stephen's Cathedral in Vienna. Besides a large number of relics, the treasure consists of sacred paintings as well as elaborate works of gold- and silver smithery. The exhibits were presented to the "Domkapitel" (collegiate church) in the St. Stephen's Church by Duke Rudolf IV (died 1365), who also initiated the creation of the cathedral chapter. The relics are kept in metal containers that had been melted down several times in the past (for example to finance the city's fortifications during the first Austrian Turkish War in 1526 and 1531 or the coalition wars from 1792 onwards). Today, the relics are in the Valentine Chapel and the tower chamber of St. Stephen's Cathedral.
Artefacts of the cathedral treasure in the west gallery of St. Stephen's Cathedral in Vienna, color photography, 2018, photographer: Bwag; source: Wikimedia Commons, https://commons.wikimedia.org/wiki/File:Wien_-_Stephansdom,_Westempore.JPG, Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0), https://creativecommons.org/licenses/by-sa/4.0/.