@Hank, with complete respect - yes, there ARE thousands of those places. And it's not THAT hard to find them. Most people are just not willing to put much (any?) effort into their travels (note all the posts on this forum like, "Yo, I'm heading to Italy next summer - where should I go?")
For the past couple of decades I have been making an effort to specifically seek out such places, and taking chances on them - places that crowds don't seem to know (or care) about, places that are NOT popular destinations for international tourism, and that even at a distance across the internet, hinted at some greatness that I might find there. Some of them are more easily found than others - many are only a tiny bit off the main tourism circuits and/or just slightly out-of-season. Others may be geographically inconvenient and may require a bit of effort to reach (but no expedition or pith helmet needed). All the places I've found take nothing more than (and usually a lot less work than) what it took to hit the "hippie trail" back in the day - I'm not into many-hours-long rides on the chicken bus anymore (been there, done that, I now prefer my comforts and the chicken bus is usually not necessary - though a rented car and a sense of adventure usually is).
It's true that in the internet age, there are no more secrets. And yes, the world is much "smaller" today (you can get literally anywhere, usually with relatively little effort, compared to a generation or two ago). But you can still find places that are, by and large, un-trampled and un-spoiled. Some of them are really easy to find (all you need to do is go a few weeks before or after the crowds are there, and look in places that have not been popularized among mass media). You absolutely can still have spectacular places pretty much to yourself (occasionally all to yourself). I find myself stumbling into them regularly - we show up, look around, my wife and I smile ear-to-ear and exchange a knowing look, then whisper "Pinch me...this is bleeping incredible! - WHY ISN'T ANYONE HERE?" It feels magical. But one must make some effort, and maybe take a chance to find one (I've also hiked in someplace and been disappointed at what I've found -"hmm, I thought it would be bigger..."). Finding hidden gems does require some effort (researching, planning, getting there). But it's absolutely worth it (to me).
Since you like Japan (we do, too) I'll share that we find those kind of spectacular places scattered around Japan more often than I had expected (plenty of places in Japan are crowded and being loved-to-death like famous places elsewhere). But at some of them, we were the only people around for miles. Crowd-free, spectacular places DO still exist.
It's been a while since I've been to Cleveland, but I will repeat a mantra I learned long ago when visiting places that some might scoff at: There's good stuff everywhere. It just might not be obvious to everyone immediately.