Finland

In addition to the cabins, you can book glass igloos that are spectacularly and over-the-top romantic.  The glass igloos are have two twin beds with individual level controls (like hospital beds) that can be pushed together in the center of the igloo and a small bathroom with a toilet and sink (no shower or tub) as you enter the igloo.  The igloos are positioned so that you can lay in your bed a marvel at the spectacular Aurora Borealis displays.