Gothic Notre Dame Cathedral and statue of Charlemagne et ses Leudes, Place du Parvis Notre Dame, Ile de la Cite, Paris, France, Europe

Looking across to Tour Charlemagne and the Basilique of St. Martin, Tours, Indre-et-Loire, Loire Valley, Centre, France, Europe

Tour Charlemagne and the Basilique St. Martin taken from the city's university, Tours, Indre-et-Loire, Loire Valley, Centre, France, Europe

Statue of Emperor Ludwig (Louis the German), grandson of Charlemagne, in the crypt of Fraumunster Church, Zurich, Switzerland, Europe

Interior of Aachen Cathedral (Aachener Dom) in Aachen, Germany. Built as Charlemagne’s royal chapel, it is one of Europe’s oldest cathedrals and a UNESCO World Heritage Site, renowned for its architecture and historical significance.

View of Aachen Cathedral (Aachener Dom) in Aachen, Germany. Built as Charlemagne’s royal chapel, it is one of Europe’s oldest cathedrals and a UNESCO World Heritage Site, renowned for its architecture and historical significance.

Interior of Aachen Cathedral (Aachener Dom) in Aachen, Germany. Built as Charlemagne’s royal chapel, it is one of Europe’s oldest cathedrals and a UNESCO World Heritage Site, renowned for its architecture and historical significance.

Detail of Aachen Cathedral (Aachener Dom) in Aachen, Germany. Built as Charlemagne’s royal chapel, it is one of Europe’s oldest cathedrals and a UNESCO World Heritage Site, renowned for its architecture and historical significance.

Charlemagne (Charles the Great) statue, Frankfurt am Main, Hesse, Germany, Europe

Charlemagne, dating from around 1350, Aachen, Germany, Europe

Throne of Charlemagne, Aachen Cathedral, UNESCO World Heritage Site, Aachen, North Rhine Westphalia, Germany

Small, gold-plated statue of Charlemagne riding a horse, Stiftsmuseum Museum Xanten monastery museum, Xanten, Niederrhein region, North Rhine-Westphalia, Germany, Europe

The Bussen saints, Saint Adelindis, Charlemagne, St. Hilgigard, St. Gerold, painting on a wall in Offingen, Landkreis Biberach district, Upper Swabia, Baden-Wuerttemberg, Germany, Europe

Monastery Lorsch, Carolingian Kings hall, Hesse, Germany

Aachen cathedral, main entrance, view from ther courtyard, Aachen, NRW, Germany

Low angle view of a church lit up at night, Grossmunster Cathedral, Zurich, Switzerland

Golden bust of Charlemagne on display in the Domschatzkammer, the Treasury of Aachen Cathedral, Aachen, Germany

Interior of the octagonal Palatine Chapel, built by Charlemagne, Aachen Cathedral (Kaiserdom), Aachen, Germany