In the Moravian Karst cave system of the Czech Republic near Brno and Blansko you can find a sinkhole named The Macocha Abyss, also known as Macocha Gorge, that is 138,7 meters deep. It is considered to be the largest in central Europe. It is remarkable for its amazing fragile and colorful dripstone formations.
One of the stalagmites, called “Svícen” (Candle), has a lace-like collar an effect created by sinters, and the place has also been used to a lot of archaeological work. Today it is a very popular tourist attraction and it has a lot of visitors every year. Also cavers and technical divers can go in there. From the pictures it looks like a magical place, like something you hear about in the fairytales. Other amazing caves are these ones in Bahamas.
Via D0cent @ Live Journal.