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Museum Museum · Lahntal · 122 m open today

Lahn-Marmor-Museum

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das Lahntal Verified partner 
  • Devonisches Riff in Lebendstellung
    Devonisches Riff in Lebendstellung
    Photo: Yvonne Sahm, CC BY-SA, Lahntal Tourismus Verband e. V.

When the Lahn Valley was in the South Sea!

Dive into a tropical reef from 380 million years ago!

Among sparkling fossils, masterful craftsmanship, and exciting stories, you will experience how a natural stone from the Lahn Valley conquered the palaces of the world.

Embark on a journey through 400 million years of Earth's history and discover how an ancient coral reef gave rise to the noble Lahn marble. Learn why this stone is found not only in castles, churches, and town halls, but even in impressive buildings in Amsterdam, Havana in Cuba, Istanbul, Moscow, St. Petersburg, Vienna, and Zurich - even in the Empire State Building in New York!

Special exhibitions, lovingly designed dioramas, and original tools bring to life the hard work of stone breakers and sculptors in this GeoInformation Center of the GEOPARK Westerwald-Lahn-Taunus. Ideal for families, school classes, culture enthusiasts – and anyone who appreciates the beauty of nature.

Highlights: The touch bar for experiencing the steps of processing and the outdoor area with the “Unica Quarry,” a geotope of national significance.

Opening times

open today
Open Apr 10, 2026 through Oct 25, 2026 from Sat and Sun 10:00–17:00 .
Open Apr 10, 2026 through Oct 25, 2026 from Tue, Wed, Thu and Fri 14:00–17:00 .

Tuesday to Friday  2:00 p.m. - 5:00 p.m.  
Saturday and Sunday  10:00 a.m. - 5:00 p.m.  
public holidays   10:00 a.m. - 5:00 p.m.

from March 28 to October 25, 2026


Price:

6.00 € adults | 4.50 € reduced for students, apprentices, and disabled individuals | 15.00 € family (max. 2 adults) | children under 7 years free admission

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Lahn-Marmor-Museum

Coordinates

DD
50.395989, 8.186614
DMS
50°23'45.6"N 8°11'11.8"E
UTM
32U 442187 5582976
w3w 
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Maps and trails
Long Distance Cycling · Lahntal
Lahnradweg upstream
recommended route Difficulty difficult Multi-day route Open
Distance 249.5 km
Duration 18:15 h
Ascent 1,000 m
Descent 455 m

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from Jörg Thamer,   Das Lahntal
recommended route Difficulty T1 easy Stage 5 Open
Distance 13.4 km
Duration 4:45 h
Ascent 159 m
Descent 148 m

Leaving Limburg is difficult... but the next highlight awaits soon with the medieval town of Runkel. Nature and panorama lovers will enjoy the ...

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from Jörg Thamer,   Das Lahntal
Long Distance Cycling · Lahntal
Lahn cycle path
recommended route Difficulty difficult Multi-day route Open
Distance 249.5 km
Duration 17:40 h
Ascent 404 m
Descent 959 m

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3.3
from Jörg Thamer,   Das Lahntal
Difficulty easy
Distance 44.5 km
Duration 2:24 h
Ascent 32 m
Descent 55 m

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Outdooractive Creative Commons
Difficulty moderate
Distance 65.4 km
Duration 3:35 h
Ascent 559 m
Descent 555 m

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Outdooractive Creative Commons
Difficulty easy
Distance 35.9 km
Duration 1:59 h
Ascent 138 m
Descent 149 m

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Outdooractive Creative Commons
recommended route Difficulty T2 moderate Multi-day route Open
Distance 294.6 km
Duration 86:00 h
Ascent 6,492 m
Descent 7,062 m

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Descent 298 m

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