Homburg Caves
Saarland
The Homburg Caves, known locally as Schlossberghöhlen, are Europe's largest Buntsandstein sandstone caves located beneath the Schlossberg hill in Homburg, Saarland, Germany. These caves are man-made, carved through centuries of sandstone mining, extending across twelve levels and measuring approximately 140 meters in length and 60 meters in width. Originally, the sandstone was extracted for glassmaking and later for cleaning and iron foundry purposes. The caves may have served as escape tunnels for the medieval Hohenburg Castle above, which was a significant fortress and residence of the counts of Homburg. Over time, the caves were used as storage for the fortress and later as an air-raid shelter during World War II. In the early 1950s, a secret bunker complex was constructed within the lower levels to protect the Saarland government. Today, after extensive restoration and safety measures, visitors can explore several accessible levels of this unique underground labyrinth. The constant temperature of about 10°C and the striking red and yellow hues of the Buntsandstein rock create a captivating atmosphere. Guided tours are offered in multiple languages, providing insight into the geological formation, historical uses, and cultural significance of the caves.
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Astuce: Visitors should wear warm clothing due to the constant 10°C temperature inside the caves. The caves are open from February to November, with daily hours varying between summer and winter seasons. Last admission is one hour before closing. No advance booking is required for individual visitors, but groups should arrange guided tours in advance. Payment is cash only, so plan accordingly. Guided tours are available in German, English, and French, and waiting times are possible due to safety briefings and helmet distribution.
Faits intéressants
- •The Homburg Caves are the largest Buntsandstein sandstone caves in Europe.
- •The caves consist of twelve floors stretching over 140 meters in length and 60 meters in width.
- •The sandstone extracted was originally used for glass production due to its high quartz content.
- •During World War II, the caves served as air-raid shelters for the local population.
- •A secret bunker complex was constructed in the 1950s within the caves for the Saarland government.
- •The caves maintain a constant temperature of about 10°C year-round with high humidity levels.
- •The caves were closed in 1872 and forgotten until rediscovered in 1932.
Histoire
The origins of the Homburg Caves trace back to human excavation of Buntsandstein sandstone, a non-karstic sedimentary rock, likely starting in the early Middle Ages possibly as escape tunnels for Hohenburg Castle.
The first documented mention of mining activities dates to 1671.
The caves were used as a fortress magazine and later as an air-raid shelter during World War II.
In the 1950s, a secret bunker was built inside the caves for the Saarland government.
Mining ceased after a sand collapse in 2003 led to closure and subsequent restoration.
Since 2007, several upper levels have been reopened for visitors.
Guide du lieu
Entrance and Visitor Center
The main access point where visitors begin their tour, equipped with safety briefing and helmet distribution. The visitor center provides historical context and ticketing.
Thronsaal (Throne Hall)
A large chamber within the caves named for its impressive vaulted ceiling and historical significance. It was closed temporarily after a sand collapse but later restored for visitor access.
Bunker Complex1950s
A secret bunker built in the early 1950s beneath the caves to protect the Saarland government during the Cold War era. It spans the lower nine levels and is accessible from the caves.
Geological Formations~250 million years ago
The caves reveal well-preserved ripple marks and iron-rich red and yellow Buntsandstein sandstone formed about 250 million years ago during the transition from the Permian to the Triassic period, evidencing a former desert environment.
Contact
Téléphone: 06841 2064
