Lake Baikal, in the Russian region of Siberia, is a massive body of water—the world’s deepest and most voluminous freshwater lake. Its location and the surrounding geography can lead to fascinating phenomena in the winter, as ferocious winds and cycles of melting and refreezing build and sculpt works of structural beauty—stones supported on wind-worn pedestals, undulating surface ice, encrusted beaches, crazy icicles, frozen methane bubbles, and more. Below, a collection of some interesting and beautiful images from the clear ice of Lake Baikal.