Literally just went back through my dream journal (am picking it up again after two years of not) and found that my last entry, in 2016, was something about wandering through a city that was oddly isolated and desert-like, a strange hybrid of retrospective nostalgia and shiny modernity whose contemporary, sleek bits were the tallest along one isolated strip. I dreamed that I went to the tallest tower on the north side of those buildings, and found that it functioned as both a panoramic lookout with 360 degree views...as well as some self-contained amusement park, which at the time didn't make any sense.
Then I dreamed that I walked out onto a very small, narrow platform that extended into the open air on one side of that tower, looking out into this world that was colored like dust and neon, and then finally I was in free fall - but it was like I'd meant to, not that I'd fallen by accident.
A year after that dream, I had to go to Las Vegas/Paradise, where I discovered that you can pay to jump off the Stratosphere - the tallest structure in the city. Which I did. So that definitely felt like revisiting a place I'd only seen before in my head. I really didn't know anything about the Stratosphere's novelties prior to that dream, either, so it was one of those odd moments where I felt like I was fulfilling some predetermined need.