Flag of the 2018 <i>Heiligdomsvaart</i> ("Relics Pilgrimage") at Vrijthof in Maastricht, Netherlands. To the right is the church of Saint John. The history of the Heiligdomsvaart goes back to the Middle Ages. The first 'modern' version of this seven-yearly, ten-day catholic pilgrimage took place in 1874. The 2018 Heiligdomsvaart was the 55th modern edition.
<a href="//commons.wikimedia.org/wiki/User:Kleon3" title="User:Kleon3">Kleon3</a>
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