I felt this way too. This structure is a single artist's vision, made solid over the course of 50 years. I can't get a feeling/reaction from it just by looking at photos but, maybe give the chance to visit, I expect I'd be able to prod the artist's vision, see if it resonates with me.
Then again, I can get joy/awe/wonder/ennui/whatever from wandering around abandoned villages, ancient ruins (even the partly reconstructed ones), cemeteries, woods, wastelands, abandoned infrastructure, etc. Or even working places/venues, but at times of least activity. The key thing, for me, is that there must be few/no people around me - to let my mind unleash itself from the trivia and go roaming - that, for me, is when the 'art' (whatever 'art' is) happens.
I could get jealous of the financial support the artist has received over the years as he strives to make his vision solid. But I have a suspicion that he would probably built something even without support. It reminds me of Outsider Art in that way: people driven to create despite the barriers others put in their way. That such people exist gives me hope for the species.
I spent my 40th birthday wandering around Uxmal. No crowds; no tourists coached in on the hour. Just me and my partner and a collapsed civilisation surrounding us. Best birthday I've ever had! https://en.wikipedia.org/wiki/Uxmal