Best attractions and places to see around Mardor include historical sites, fortified city elements, and natural landscapes. The area features a historic city known for its ancient walls, gates, and religious architecture. Visitors can explore a blend of cultural heritage and scenic natural spots, including a notable lake. This region offers a variety of experiences for those interested in history and outdoor exploration.
Last updated: June 24, 2026
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Until the mid-19th century, the remains of a Gallo-Roman arch, which marked the northern city limit, were still visible. After being integrated into the fortifications at the end of the 3rd century and becoming a city gate, this structure owes its name either to its length or to a legendary king named Longo, whose effigy was mounted on a corbel overlooking the city. Around 1538, a barbican was built in front of the gate to prevent a frontal assault.
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This is the cathedral of Langres.
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Imposing cathedral of a small town steeped in history! Worth seeing from the outside and inside
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The Longe-Porte still has its 17th century guardhouse intact. The barbican of the “Longe-Porte” gate, projecting from the ramparts, allowed for increased control of access to the town of Langres.
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The Porte de l’Hotêl de ville or Porte Gallo-Romaine, in Langres is one of the seven gates around the fortified town of Langres, whose origins date back to Gallo-Roman times. The gate was built in 1592, was given a barbican in 1620 and was rebuilt in 1750. The gate gave direct access to the markets and was an important passage for trade. The gate has an impressive frieze with gargoyles and a coat of arms with the fleur-de-lys. The gate is a national monument and one of the 20 most beautiful sights around Langres. 😊
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The Train à crémaillère in Langres was the first rack railway in France, connecting the Gare de Langres with the town of Langres, which is situated on a hill. The railway was 1.475 km long and had a maximum gradient of 172 ‰. The railway opened in 1887 with steam traction and was electrified in 1935. The railway was closed in 1971 due to obsolescence. One of the old electric trains has been restored and stands on the Promenade Jules Verne in Langres. The other has been taken to the Musée français du chemin de fer in Mulhouse. The railway was a major attraction for the residents and visitors of Langres, who could enjoy the views over the town and its surroundings.
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Langres Cathedral is dedicated to the 3rd century martyr Mammes of Caesarea. The cathedral is the seat of the Bishop of Langres and is a national monument. The cathedral dates from the 12th century and has a mixture of Romanesque, Gothic and Classical styles. The roof is decorated with colourful tiles and the façade has many details. The cathedral has some remarkable tapestries that are worth seeing. The cathedral is also a place of pilgrimage, as it houses the holy relic of the head of Saint Mammes. The cathedral is 94m long and 23m high. The façade was destroyed by fire and replaced in the 18th century by a three-storey classical façade.
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The Porte des Terreaux is a historic gate in Langres. It is one of the gateways to the fortified city, which is surrounded by a 3.5 km wall. The gate was built in the early 13th century to allow military convoys to bypass the city center. The gate had a double drawbridge and a barbican, a defense structure that was later demolished. The gate also has a mâchicoulis cornice (extension above the entrance), a medieval architectural element.
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Mardor, particularly the city of Langres, is rich in history. You can visit the Saint-Mammès Cathedral of Langres, a religious building with Burgundian-Romanesque and Gothic elements. Explore the ancient fortifications through gates like Porte des Terreaux, a 13th-century historic gate, and the Porte de l'Hotêl de ville, which has Gallo-Roman origins and was rebuilt in the 18th century. Don't miss the remnants of the Langres Rack Railway, France's first rack railway, offering views of the fortified city.
Yes, several attractions in Mardor are suitable for families. The Saint-Mammès Cathedral of Langres and the Langres Rack Railway are both categorized as family-friendly. Additionally, Lake Mouche offers an easy, well-marked trail around its perimeter, perfect for a family stroll amidst nature.
The most prominent natural feature is Lake Mouche. It is surrounded by forests and villages, offering opportunities to admire views of the water and local wildlife. The lake is held back by an impressive semi-viaduct dam, which is the highest of the four dams in the Pays de Langres.
The area around Mardor is excellent for outdoor activities. You can enjoy mountain biking on trails like the 'La Mouche Dam – Lac de la Liez loop' or the 'Tufière de Saint-Ciergues loop'. For running, consider the 'Tour du Lac de la Mouche Trail' or more challenging routes like 'Fort de la pointe de Diamant'. Road cyclists can explore routes such as 'Auberive Abbey – Lake Mouche loop'. Find more details on these activities in the dedicated guides for MTB Trails, Running Trails, and Road Cycling Routes around Mardor.
Yes, for an easy and scenic walk, the trail around Lake Mouche is well-marked and accessible year-round. It allows you to enjoy the surrounding forests and views of the water. For more options, check the Running Trails around Mardor guide, which includes routes suitable for walking.
Langres is surrounded by a 3.5 km long fortified city wall, featuring twelve towers and seven gates. These walls offer a unique opportunity for a walk or bike ride, providing panoramic views of the surrounding landscape. Historic gates like Porte des Terreaux and Porte de l'Hotêl de ville are integral parts of this impressive defensive structure.
Visitors appreciate the blend of historical depth and natural beauty. The ancient city of Langres, with its well-preserved fortifications and the majestic Saint-Mammès Cathedral, offers a journey through time. The serene environment of Lake Mouche, with its surrounding forests and impressive dam, is highly valued for its peaceful atmosphere and outdoor opportunities. The komoot community has shared over 130 photos and given more than 100 upvotes for these attractions.
Yes, the 3.5 km long city wall of Langres offers an easy 'round' path that is suitable for cycling. This allows you to admire the architecture of the fortifications and enjoy panoramic views of the surrounding area.
Yes, the Langres Rack Railway is a unique historical attraction. It was the first rack railway built in France, connecting the lower station of Langres-Marne to the upper town of Langres. Although closed in 1971, you can still see traces of its tracks and stations, and one of the old electric trains has been restored and is displayed on the Promenade Jules Verne in Langres.
The Porte de l'Hotêl de ville, also known as Porte Gallo-Romaine, is one of Langres' seven fortified gates. Its origins date back to Gallo-Roman times, and it was an important passage for trade, providing direct access to the markets. The gate, built in 1592 and rebuilt in 1750, features an impressive frieze with gargoyles and a coat of arms with the fleur-de-lys, making it a national monument.
When visiting the Saint-Mammès Cathedral of Langres, take your time to appreciate its unique interior and the blend of Burgundian-Romanesque and Gothic architectural styles. It's located in the middle of Langres on the market square, making it easily accessible within the city. The cathedral offers a quiet space for reflection and architectural admiration.


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