And you can actually go into and explore the structures on a self guided tour.
There’s a whole loop of cool ones around the Cedar City area too that can be done in an overnight trip including Old Irontown, Frisco, Modena, etc.
Nevada has some good ones too. St Thomas is pretty cool, it used to be covered by Lake Mead but is now completely uncovered and you can hike down to it and there’s a lot of structures there. I’d suggest that when it’s not 110+ but it’s neat. Also Rhyolite is cool.
Idaho has Chesterfield that has a lot of LDS history to it.
I could go on but those are some good starters. If you want to find more theres groups on Facebook and websites like ghosttowns.com where you can look up ghost towns by state. Many are accessible by most vehicles, others require off road or 4x4 vehicles so you do need to look up that too so you don’t get stuck with the wrong vehicle (I’ve had some close calls almost getting stuck)