I'd like to visit the Nevada Test Site where the government detonated nearly 1000 nuclear bombs from the 1950s all the way until 1992. You can only visit this place via tour as its not open to the public. The government has a checkpoint on the highway that leads to this place that's guarded like Area 51, and speaking of that name, the test sites are only about 20 miles or so away from Area 51.
The house pictured above is one of the remaining test buildings out there still standing after all the nuclear detonations. [url=https://www.youtube.com/watch?v=zU9lCKDzKSY]You can see a similar-looking house be destroyed in this video starting at 10:28.[/url]
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On my family's list of places to visit that are supposedly super haunted, one I recently read a bit about is Jerome, Arizona. From stuff I've read, in the old days it was a big copper mine before declining. So many people died in the mines (and giving even a single shit about your employees wasn't a thing yet) that they started cremating them in the blast furnaces. The town also had a habit of burning down, so at one point they decided to use the slag from said furnaces, full of dead people, to make concrete for buildings and sidewalks. That and some of the old buildings look neat.