Notre-Dame de Chartres Cathedral. The Chartres labyrinth, a 12th-century work of art, is a circular geometric figure measuring 12.89 m in diameter, set in the full width of the paving of the main nave, between the third and fourth bays.

Notre-Dame de Chartres Cathedral. The Chartres labyrinth, a 12th-century work of art, is a circular geometric figure measuring 12.89 m in diameter, set in the full width of the paving of the main nave, between the third and fourth bays.