Best attractions and places to see around Celsoy are primarily found in the surrounding region, particularly near the historic city of Langres. Celsoy itself is a small village in the Haute-Marne department of France, offering a quiet, rural French experience. Its location provides access to a range of historical, cultural, and natural attractions, including lakes and significant architectural sites. The area is characterized by its historical fortifications and natural landscapes.
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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Nice hike with parking and picnic area nearby. The path leading to the spring is a bit steep and can be slippery if it rains. The Sabinus cave is worth the detour, watch out for children when going there.
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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 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 Marne (Latin Matrona) is a river in France. It rises on the plateau of Langres, in the municipality of Balesmes-sur-Marne, at an altitude of about 420 meters. It initially drains to the northwest, later turns to the west and southwest and flows into the Seine as a right tributary after about 514 kilometers between Charenton-le-Pont and Ivry-sur-Seine, just southeast of Paris. Several French departments are named after the Marne, namely Haute-Marne, Marne, Seine-et-Marne and Val-de-Marne.
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The region around Celsoy is rich in history. You can explore the impressive Saint-Mammès Cathedral of Langres, a significant cultural and architectural site with Burgundian-Romanesque and Gothic influences. Another notable historical landmark is the Porte des Terreaux in Langres, an early 13th-century gate that is part of the city's 3.5 km fortified walls. Additionally, the Langres Rack Railway, France's first rack railway, offers a glimpse into the area's industrial past and provides views of the fortified city.
Yes, the area boasts several natural highlights. The Source of the Marne, located on the Langres plateau, is where the longest tributary of the Seine begins its journey. You can also visit Lac de la Liez, a significant draw for its scenic beauty, offering opportunities for hiking, water activities, and birdwatching. The lake features a 16 km circuit and has beaches and a nautical base.
The region around Celsoy is excellent for various outdoor activities. You can find numerous routes for cycling, road cycling, and mountain biking. For example, there are routes like the 'View to Langres up the lake – Lake Liez loop' for cycling, or the 'Étang de Noribaud loop' for road cycling. Mountain bikers can enjoy trails such as the 'Lac de la Liez loop'. You can find more details on these and other routes on the cycling, road cycling, and MTB trails around Celsoy guide pages.
Absolutely. The Liez Lake Beach is a great option for families, offering a sandy beach where swimming is permitted when conditions are safe. It also has a solarium, volleyball court, playground, and picnic area. The Saint-Mammès Cathedral of Langres and the Langres Rack Railway are also considered family-friendly, offering historical and scenic interest.
For swimming and water activities, head to Lac de la Liez. The Liez Lake Beach provides a sandy area for swimming, along with facilities like a playground and picnic area. The lake also has a nautical base, offering various water-based recreation.
The Denis Diderot House of Enlightenment is a museum located in Langres, dedicated to the renowned French philosopher, writer, and art critic Denis Diderot, who was born in the city. Housed in a historic building, the museum explores Diderot's life and work within the context of the Enlightenment, featuring sculptures, paintings, and first editions of the Encyclopédie. You can learn more about it on Wikipedia.
Yes, Langres is famous for its well-preserved fortified walls, which stretch for 3.5 km. You can take a walk along these walls, which include twelve towers and seven gates, such as the historic Porte des Terreaux. This offers excellent views of the city and the surrounding landscape.
While the main attractions are in the surrounding region, Celsoy itself is a quiet, rural French village. It is notable as the birthplace of Octave Mengel (born in 1863), a pioneer in agricultural weather forecasting. The village's name is also believed to derive from 'cerasetum,' suggesting a historical abundance of cherry trees in the area.
Yes, in the broader region around Celsoy, you can find the Castle of Pailly. This historic building is another point of interest for those exploring the area's rich heritage.
Visitors frequently praise the historical depth and architectural beauty of sites like the Saint-Mammès Cathedral of Langres, noting its unique interior and the peaceful atmosphere. The fortified city of Langres, with its walls and gates like the Porte des Terreaux, is appreciated for its historical significance and panoramic views. Natural spots like Lac de la Liez are enjoyed for their recreational opportunities and scenic beauty.
Yes, Aqualangres is an aquatic center likely located in or near Langres, offering recreational swimming and water activities for visitors.


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