Okay, someone on here a while back asked about the unusual places to stay/visit in the US and there was a long list--but let me add some more recent unusual spots that one might consider seeing:
(1) the Aurora Ice Museum at Chena Hot Springs in Fairbanks, Alaska--this is the only ice hotel/museum opened year round in the world.
(2) the Out and About Treesort (a resort that consists of 31 different treehouses to stay in)--and that also has a variety of other activities, including ziplining and horseback riding
(3) Dunton Hot Springs in Dolores, Colorado (near Telluride in the western part of Colorado). This is a old mining town (ghost town) that underwent a multi-million dollar restoration so people could stay there--but still looks exactly like the old ghost town it is years later.
(4) Madonna Inn--a 100 room hotel in San Luis Obispo, California that has every single room in a different motif--examples would be the Caveman room, the Wild West Room, the Irish room, and the Jungle room, and
(5) Winvian resort in Litchfield Village, Connecticut--every one of the 18 or so buildings/hotel rooms is done in a different motif--examples are the Treehouse Room, the Beaver Room, The Helicopter room (with an actual helicopter inside that you can sleep in), the Music Room, and the Golf Room. The resort is on a 113 acre site bordered by a 4,000 acre wildlife sanctuary
Hope this help those who are looking for something just a little bit different.