(edit: LATE August) we are looking for interesting and "kooky" things to do and see. We have allotted roughly 8 days round trip. We are doing the no brainers of Mt Rushmore, wall drug, corn palace and of course all that Yellowstone has to offer. We would also love to find things like being able to explore for fossils, minerals and gems "treasure hunting", geocaching, paranormal/haunted areas/places, ufo sighting areas and "searching for big foot" lol The last two are the hubby's ideas - he heard there is a large amount of ufo sightings in Montana and he thought he heard about some bigfoot searching tours or something of the sort. We are trying to do things that are funny and memorable as we have two kids who will be seniors in HS and one that will be a sophomore this year and they will be moving on with their lives shortly. Does anyone have some ideas or places to recommend/share??