Which English cathedral has the longest uninterrupted medieval stone vault in the world?

Exeter Cathedral has the longest uninterrupted medieval stone vault in the world.

The cathedral’s famous continuous vault extends through the nave, choir, and presbytery without a central tower interrupting the line of the ceiling. Built mainly in the Decorated Gothic style, it demonstrates the structural and decorative ambition of medieval English masons.

Construction of the present building began in the twelfth century and continued for several centuries. Its Norman predecessors were gradually replaced, while the cathedral retained important medieval features such as its twin towers and detailed carved stonework.

The claim concerns the uninterrupted medieval stone vault, not the total length of the building. That distinction separates Exeter’s architectural superlative from claims made about other long English cathedrals.