Stalactite

Stalactite clusters are seen in the Cave of the Lakes, 16.5 km south of Kalavryta, in the Peloponnese peninsula, in a photo made available Saturday. The cave, featuring a cascade of 13 stagnant lakes spanning three distinct floors, was used by humans as early as the 5th millennium BC. The last five years have seen the lowest water levels in its lakes, as a result of climate change.

Historic caves in Turkey's southeastern province of Diyarbakır's Lice are on the way to becoming a tourism attraction hub after living under the shadow of terrorism activities for decades.

Local authorities took the first concrete step to increase the awareness of the Birkleyn Caves, a hidden natural beauty that is believed to have 8,000 years of history.

The Karaca Cave in the eastern Black Sea province of Gümüşhane has been one of the most important tourist attractions in Turkey for many years thanks to its magnificent stalactites and stalagmites and high oxygen levels. (AA Photo)

All of the nine lakes in the İnsuyu Cave, which have even been the subject of myths, have dried up because of drought. Some of the stalactites in the cave have also blackened due to wrong lighting. The lighting of the cave was recently fixed and opened to visitors. 

High above the village of Werfen in Austria lies the “World of the Ice Giants,” the ice cave which is considered to be the largest of its kind in the world. Eisriesenwelt is a natural limestone ice empire which is 26 miles (42 km) long and is one of the most visited places in Austria.