Rheims is a city in France located in the Marne department in the Grand Est region. It is known for its Gothic cathedral, Notre-Dame de Rheims, which was built in the 13th century. Beziers is a city in the Occitanie region of France located on the banks of the River Orb. It is home to the Cathedrale Saint-Nazaire, a Gothic cathedral built in the 13th century. Ely is a city in Cambridgeshire, England, located on the River Great Ouse. It is home to Ely Cathedral, a Norman cathedral built in the 11th century. Siena is a city in Tuscany, Italy, located in the province of Siena. It is home to the Duomo di Siena, a Gothic cathedral built in the 12th century. Exeter is a city in Devon, England, located on the River Exe. It is home to Exeter Cathedral, a Norman cathedral built in the 11th century. All of these cities are known as cathedral cities due to the presence of their respective cathedrals.