Longuyon is a historic town in the Grand Est region of northeastern France, ideally situated near the borders with Belgium and Luxembourg. Its geography is defined by the confluence of the Chiers and Crusnes rivers, which has made it a focal point for settlement since ancient times. The town's modern fame is largely tied to the Maginot Line, specifically the Fort of Fermont. This massive underground fortification is one of the premier sites for military history enthusiasts, featuring authentic elevators, electric trains, and artillery turrets. Architecturally, Longuyon is graced by the Collegiate Church of Sainte-Agathe, a remarkable Romanesque structure that has overlooked the town since the 12th century. During the industrial era, the town thrived as a vital railway hub, facilitating the movement of iron and coal across the borders. Today, Longuyon is a peaceful residential community that serves as a home for many who work in neighboring Luxembourg, while its surrounding forests and river valleys provide a high quality of life for outdoor enthusiasts.
Location: Grand Est, France
Top sights: Église Sainte-Agathe · Fort de Fermont · Étang de la Forge
Nearby: Réhon (13 km)
Population: ~8.266
Best time to visit & climate
The most pleasant time to visit is Jun–Aug.
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Avg °C
1
1
5
9
13
16
19
18
14
10
5
2
Rain mm
78
66
65
50
73
70
69
77
58
71
75
89
Live webcam – Longuyon
See what it looks like near Longuyon right now.
Villette › South: Longuyon - Grand-Est, France · 4.6 km · Open webcam on Windy · Webcams provided by Windy.com
Geography
Population
5,773
Coordinates
49.44690, 5.60060
Facts
Current population: 8,266.
The Fort of Fermont covers several square kilometers of surface area.
Sainte-Agathe church is listed as a French National Monument.
It is approximately a 30-minute drive to the city of Luxembourg.
The town was a strategic target in both World Wars.
Longuyon is surrounded by the vast forests of the Lorraine region.
Pick weather + travel mode, get a concrete day plan.
09:00→16:595.4 km walk5 places0/5
Day budget: ≈ 17–23 €Entries 20€ · Transport 0€
Start your morning admiring the fortified architecture of Église Sainte-Agathe before walking to the historic Chapelle Saint-Jean-Baptiste. At midday, head towards Mussy-les-Longuyon to explore the atmospheric castle ruins and enjoy a light packed lunch. In the afternoon, visit the elegant Église de la Sainte-Vierge. Conclude your walk by paying respects at the WWI Monument as evening approaches.
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09:10 · 50'
Église Sainte-Agathe
Admire the striking medieval architecture and defensive elements of this fortified church, making sure to walk around the exterior to fully appreciate its imposing towers.
Discover the tranquil atmosphere of this historical chapel dedicated to Saint John Baptist, and take a moment to observe the fine stonework details near the main entrance.
Explore the atmospheric ruins of this ancient medieval castle that overlooks the valley, and wear sturdy shoes to safely navigate the uneven grassy paths around the walls.
Take in the serene beauty of this local parish church with its classical interior, and pay special attention to the beautifully crafted stained glass windows on sunny days.
Pay your respects at this solemn World War I memorial dedicated to local heroes, and bring your camera to capture the intricate bronze relief work honoring their sacrifice.
The rainy morning begins in the sheltering church. At noon, muddy paths to the castle ruins require waterproof boots and an umbrella. In the afternoon, local churches offer dry refuge. The day ends at the wet, atmospheric memorial.
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09:10 · 50'
Église Sainte-Agathe
Escape the heavy rain inside the dry, echoing nave of the historic church.
A frosty morning starts in the warm church. At noon, biting winds sweep the castle ruins, making thick layers mandatory. Afternoon brings visits to local chapels. Reach the monument before the early sunset around 17:00.
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09:10 · 50'
Église Sainte-Agathe
Warm up completely inside the sheltered church before stepping out into the freezing morning air.
Kick off your cycling tour at the majestic Église Sainte-Agathe before riding up to the serene Chapelle Notre-Dame-de-Bon-Secours. Midday brings you to the historic Chapelle Saint-Jean-Baptiste and the fascinating castle ruins in Mussy-les-Longuyon. In the afternoon, pedal over to the Église de la Sainte-Vierge. Finally, reflect at the 1914-1918 Monument before wrapping up your cycling day.
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⛪
09:10 · 50'
Église Sainte-Agathe
Admire the striking medieval architecture and defensive elements of this fortified church, making sure to walk around the exterior to fully appreciate its imposing towers.
Visit this characterful pilgrimage chapel surrounded by nature for a moment of reflection, and check out the small votive offerings left by visitors over the past centuries.
Discover the tranquil atmosphere of this historical chapel dedicated to Saint John Baptist, and take a moment to observe the fine stonework details near the main entrance.
Explore the atmospheric ruins of this ancient medieval castle that overlooks the valley, and wear sturdy shoes to safely navigate the uneven grassy paths around the walls.
Take in the serene beauty of this local parish church with its classical interior, and pay special attention to the beautifully crafted stained glass windows on sunny days.
Pay your respects at this solemn World War I memorial dedicated to local heroes, and bring your camera to capture the intricate bronze relief work honoring their sacrifice.
The wet morning demands waterproof gear. At noon, trails to the ruins are slippery, so ride carefully. In the afternoon, churches offer short, dry breaks. The evening ride back from the monument requires good lights in the rain.
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⛪
09:10 · 50'
Église Sainte-Agathe
Park your bike safely and aggressively shake off your wet rain jacket in the vestibule.
The morning cold demands thermal cycling gear. At noon, climbs to the ruins keep you warm, but watch out for icy patches. Afternoon takes you through frosty landscapes. Finish the tour before the dark, freezing evening sets in around 17:00.
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⛪
09:10 · 50'
Église Sainte-Agathe
Warm yourself thoroughly inside before bracing against the frosty headwinds on your ride.
Drive first to the fortified Église Sainte-Agathe, then quickly hop to the Chapelle Saint-Jean-Baptiste. Spend midday exploring the castle ruins of Mussy-les-Longuyon and viewing the WWI Monument. In the afternoon, head out of the center to tour the massive underground Fort de Fermont and the nearby Notre-Dame chapel. End your road trip with a relaxing sunset stroll at the Étang de la Forge.
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⛪
09:10 · 50'
Église Sainte-Agathe
Admire the striking medieval architecture and defensive elements of this fortified church, making sure to walk around the exterior to fully appreciate its imposing towers.
Discover the tranquil atmosphere of this historical chapel dedicated to Saint John Baptist, and take a moment to observe the fine stonework details near the main entrance.
Explore the atmospheric ruins of this ancient medieval castle that overlooks the valley, and wear sturdy shoes to safely navigate the uneven grassy paths around the walls.
Pay your respects at this solemn World War I memorial dedicated to local heroes, and bring your camera to capture the intricate bronze relief work honoring their sacrifice.
Dive into military history by exploring this massive subterranean Maginot Line fortress, but make sure to bring a warm jacket since the underground tunnels remain quite cold.
Visit this characterful pilgrimage chapel surrounded by nature for a moment of reflection, and check out the small votive offerings left by visitors over the past centuries.
Unwind by the peaceful waters of this historic forge pond surrounded by lush forest, making it the first-rate spot to enjoy a late afternoon picnic with local delicacies.
In the morning, drive dryly between churches. At noon, you need rain boots for the wet castle ruins. In the afternoon, the underground Fort de Fermont is the perfect rainproof spot. In the evening, the misty lake looks highly mystical.
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⛪
09:10 · 50'
Église Sainte-Agathe
Dash quickly from your warm car into the dry shelter of the church to admire its interior.
Enjoy the warm morning drive to the frosty churches. At noon, a cold wind blows at the ruins. In the afternoon, keep your jackets on inside the underground fort. Experience the early sunset around 17:00 by the frozen lake.
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⛪
09:10 · 50'
Église Sainte-Agathe
Stepping out of your heavily heated car, the thick stone church feels refreshingly crisp.