4. Vitim River Bridge, Siberia, Russia

The Vitim River Bridge is located in Siberia. It is a train bridge built long ago crosses the river. Winters in Siberia are extreme. Drivers hate the structure since the wood covers with ice and cannot provide traction. Crossing the bridge in winter is not for the fainted hearted. Those who have managed to do it have opened accounts on Facebook to tell the world more about how hard it really is.