Chełm is not just a basilica and onion rolls — it is a city literally standing on 40-60 km of chalk tunnels carved since the 13th century, of which only 2 km are open to tourists, while the rest still waits in darkness beneath pedestrians’ feet. Here are the 5 best abandoned places in Chełm, selected from our Urbex Poland Map — 1000+ GPS locations across Poland.
Why is Chełm unique for urbex?
Chełm is the only city in Poland — and one of the few in the world — that stands on a labyrinth of 40-60 km of chalk tunnels privately carved by residents from the 13th to the 19th century. In 1956, an entire tenement house on Lubelska Street collapsed underground. In the 1970s, a whole truck disappeared into a similar sinkhole. Today, only 2 km of these tunnels are open — the rest remain unexplored, bricked up, or filled in. A world-class phenomenon and a natural eldorado for lovers of urban exploration.
1. Chełm Cretaceous Underground – 40-60 km of 13th Century Tunnels, Only 2 km Open (Known Location)
Carved out since the 13th century by residents directly from their own cellars — in the 17th century, out of 100 tenement houses in the old town, 80 had an entrance to the underground labyrinth. The extracted chalk was sent to Kraków, Gdańsk, and across the continent. Today, there is a 2 km tourist route on three levels — but beneath them stretch tens of kilometers of unexplored corridors on 4-5 levels down to a depth of 20 meters, which no one has yet mapped. Declared a Wonder of Poland 2024 by National Geographic Traveler — the only such cretaceous underground in the world.
🔗 More about the Cretaceous Underground: Wikipedia – Cretaceous Underground in Chełm
2. Unexplored Cretaceous Corridors from the 13th Century – Bricked-Up Entrances under the Old Town, Chełm (Known Location)
Beyond the 2 km tourist route stretch tens of kilometers of tunnels bricked up by German occupation authorities in 1942 and never fully reopened. Some corridors were filled in, others reinforced with cement after disasters in the 1950s and 1970s — but a significant part of the unexplored workings on the oldest levels near the castle hill still await exploration by specialists with mining rescue qualifications. No one knows exactly where they end — legend says they stretch all the way to Stołpie, 15 km from the city.
🔗 Also read: Top 5 Best Urbex Places in Poland →
3. Abandoned Ammunition Warehouses from the 1940s – Concrete Bunkers in the Forest, Near Chełm (Exclusive on our Map)
Built in the 1940s as ammunition and military equipment warehouses in the forest on the outskirts of Chełm — concrete bunkers with steel doors still on hinges, underground storage rooms with original shelves, and internal railway infrastructure for transporting crates. Abandoned after the end of World War II or after the reorganization of Soviet troops post-1989 — one of many forgotten military sites in eastern Lublin region. Exact location available on our Urbex Poland Map.
4. 19th Century Noble Manor – Linden Alley and Courtyard Well, Eastern Lublin Region (Exclusive on our Map)
19th-century brick noble manor in the landscape of eastern Lublin region on the Polish-Ukrainian border — original tiled stoves in the chambers, a landscape park with a linden alley overgrown by forest, and a courtyard well with a still functional winch. Nationalized after the 1944 land reform, used as the headquarters of a state agricultural farm (PGR) — abandoned after its collapse in 1991. Eastern Lublin region has preserved several dozen such manors near the Ukrainian border — each a separate layer of the history of borderland nobility. Exact location available on our Urbex Poland Map.
5. Abandoned Cement Factory from the 1950s – Rotary Kilns and Silos, Near Chełm (Exclusive on our Map)
Built in the 1950s as a cement plant using natural chalk and limestone deposits in the Chełm region — large rotary kilns for firing clinker still standing in production halls, concrete silos with original bucket elevator, and offices with PRL-era technical documentation scattered on the floor. Closed after the 1989 transformation when the cement market became dominated by larger plants — one of the lesser-known industrial urban exploration sites in the Chełm region. Exact location available on our Urbex Poland Map.
Urbex Poland – Safety Rules
Urban exploration in Poland is legally ambiguous. Always:
- In the chalk underground: never go beyond the designated tourist route — risk of ceiling collapse
- Explore with at least one other person and proper equipment (mask, gloves, boots)
- Respect the places and leave no traces
The urbex code applies everywhere: “Take only photos, leave only footprints.”
❓ FAQ – Urbex Chełm
How long are the undiscovered chalk tunnels under Chełm?
Estimates say 40-60 km of tunnels — no one knows exactly because they were built privately without a plan. Only 2 km are open for tourism. The rest is bricked up, filled in, or unexplored — the oldest corridors near the castle hill from the 13th century await exploration with mining rescue qualifications.
How to get to the Chełm Chalk Underground?
Lubelska St. 55a, Chełm — entrance in the slope below the Church of the Sending of the Holy Apostles. Tours only with a guide, approx. 50 minutes, constant temperature +9°C. Tickets from 22 PLN, phone reservation recommended.
What makes Chełm unique for urbex?
The only city in Poland with 40-60 km of 13th-century chalk tunnels beneath its feet — 95% of which remain unexplored and inaccessible. A world-class phenomenon and a natural magnet for urban exploration enthusiasts, declared a Polish Wonder 2024 by National Geographic.
🎯 Summary
Chełm offers the most unique underground urbex experience in Poland — a city beneath which stretch tens of kilometers of unexplored chalk tunnels from the 13th century, where in 1956 a tenement house sank underground, and in the 1970s a truck disappeared into a street sinkhole. Every abandoned place in Chełm is a separate layer of the city’s history, which literally stands on voids.
Urbex Poland Map – Abandoned Places
- ✓ Over 1000 GPS locations across Poland
- ✓ Exclusive locations unavailable anywhere else
- ✓ Instant access after purchase
- ✓ Free updates forever
€9.99
Discover all locations →
