![Breathtaking images of icicle formations on Lake Baikal(4/4)](http://www.ecns.cn/hd/2018/04/11/c2b9425c42374cb0a6dbf43bfd462d62.jpg)
Photographer Andrey Grachev captured incredible images of icicle formations in ice caves on Lake Baikal in Siberia, Russia, known as the deepest lake in the world. Some of the stunning ice structures were over 10 feet long. Grachev, 39, from Moscow, said they developed after heavy rainfall in the freezing Russian temperatures. (Photo/VCG)