Known as Feengrotten in German, the Saalfeld Fairy Grottoes are colorful caves full of stalactites and stalagmites. Once a slate mining pit known as Jeremias luck, the beautiful grottoes were declared the "most colorful grottoes of the world" by the Guinness Book of Records.
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December 20, 2012
Al Hamra, Oman
The biggest cave system in the Arabian Peninsula is home to a rare variety of blind fish.
Neah Bay, Washington
At the most northwestern point of the contiguous United States lies a trail leading through an ancient forest to stunning cliff-side vistas and massive oceanside caves.
Penrith, England
A series of idealized caves carved to entertain guests.
Athens, Greece
These caves secretly held national treasures during World War II.
Edgewood, Iowa
Chilly air billows out from the entrance of an abandoned mine on a steep hillside, providing a refuge for Ice Age fauna and flora.
Soriano nel Cimino, Italy
This archaeological site built into a tuff outcrop is filled with rock dwellings, the ruins of a medieval castle, and a necropolis.
Sorano, Italy
This network of roads is one of the most unique Etruscan creations ever discovered.
Flensburg, Germany
Located in the middle of public park, this cave built in the early 19th century houses an ancient stone sarcophagus.
