A one-of-a-kind experience worldwide: sleeping under the Northern Lights in a heated glass dome. Kakslauttanen Arctic Resort offers glass igloos with specially heated roofs that prevent frosting, allowing you to watch the Arctic sky and aurora from your warm bed. Options range from small igloos for couples to luxurious Kelo-Glass Igloos combining log cabin warmth with glass dome views, private sauna, and fireplace. The aurora season runs from August 22 to late April, making this a bucket-list destination for aurora hunters.