The best traffic-free bike rides around Diesdorf

The cycle path rides really well

Recent cycle path winding through the forest, very quiet

You should be careful when riding through the city center, because the smooth stone surface with small steps is not entirely safe for narrow racing bike tires.

Probably the smallest of the French Moselle metropolises. But alongside Metz, Nancy, and Épinal, Thionville also has a charm all its own. Its past as a bastion, or as a coal and steel mining region, is still clearly visible in many places.

🛡️ **Ouvrage du Hackenberg** – The Largest Fortification of the Maginot Line** The **Ouvrage du Hackenberg** near **Veckring** is the most impressive and largest fortification of the **Maginot Line** – a real must-see for history buffs. Built between 1929 and 1935, it includes: 🔩 **17 combat and entry blocks**, 🚇 over **10 km of underground tunnels**, 🚂 an **internal electric railway**, ⚙️ barracks, ammunition depots, a hospital, and a power supply. During World War II, the fort was combat-ready, but was evacuated without a fight after the armistice in 1940. The French Army later reused the facility during the Cold War. 🎟️ Today, Hackenberg has been beautifully restored and can be visited on guided tours – including a ride on the original narrow-gauge railway. Tip: Be sure to take a guided tour – it lasts about two hours. The underground coolness is pleasant even in summer! It's ideal for a half-day excursion with a historical twist.

🚢 **Koenigsmacker Lock – Technology Meets Landscape** The **Koenigsmacker Lock** is a large lock on the Moselle near the Luxembourg border. Here, cargo ships negotiate the difference in elevation of the canalized Moselle – a fascinating spectacle of water, steel, and precise control. The lock area is easily visible and is nestled between green spaces, a bike path, and the banks of the Moselle. **Tip:** Watch a ship being locked up close – especially exciting for technology fans and families. Mornings or late afternoons are often the busiest times.

🧱 **Tour aux Puces** – Thionville's Oldest Building** The **Tour aux Puces** ("Powder Tower") is a medieval fortified tower dating back to the 11th century – and the oldest surviving building in the city. Originally part of a castle complex, it has served over time as a defense tower, a prison, and now houses a **City Museum** with an archaeological collection. 🏺 Inside, you'll find exhibits from Roman, medieval, and early modern periods – from ceramics to weapons to religious objects. The tower probably got its name from a mistranslation from German to French (“Powder Tower” became “Powder Tower”). **Tip:** The tower is cool and quiet – perfect on hot days. From the top, you have a small but excellent view over the old town. Combine it with the Belfry and the Église Saint-Maximin for a historical tour.

🏰 Thionville – A Border Town with History on the Moselle Thionville (German: Diedenhofen) is located in northeastern France, not far from the borders with Germany and Luxembourg. The city looks back on a turbulent past – between the Romans, the Lorrainers, the Prussians, and the French. Numerous buildings still bear witness to this turbulent history: the medieval fortress, the Tour aux Puces (a former keep, now a museum), and the neoclassical buildings in the city center. 🚶‍♂️ Thionville is a starting point for exploring the Moselle Valley, visiting castles like the Château de Malbrouck, or natural sites like the Stromberg with its caves and rock formations. 🛤️ Due to its location on the Moselle River and its proximity to Luxembourg, Thionville is also an important transportation hub today – but as soon as you leave the city, you're immersed in a tranquil, green landscape full of cultural and historical discoveries.