Paris-Roubaix is one of the oldest and most grueling one-day cycling races in the world. The competition is nicknamed the "Hell of the North" due to its numerous cobblestone sectors. These sections are known as pavé and consist of rough, uneven stones. The men's race starts in Compiègne and finishes at the velodrome in the city of Roubaix. The total distance covers 260 kilometers. The women's race also traverses the most difficult sectors. Participants tackle legendary paths through the Arenberg Forest and the Carrefour de l'Arbre. A victory in this classic is considered a supreme achievement.