Crowds of people trekked across a frozen-over Lake Superior this winter to see the stunning ice caves accessible on foot for the first time in several years. Check out photos of some of the dazzling ...

Roger Hanson gets an up-close view of the ice cave he created at the base of his now more than 45-foot-tall, 72-foot-wide ice structure in Superior. Hanson has been working on the project for more ...