Mono Lake. I’ve wanted to visit and take photos there for years and years. You can read all the Wikipedia details about it here, but to really appreciate just how interesting (cool, bizarre, weird, wild, otherworldly, etc.) it can be, one has to experience it in person.
Among the treats to see are these tufa, the limestone remnants of ancient underwater springs. Record snowfall in the mountains above Mono Lake (read about that here) may be bringing some desperately needed water into the lake basin, to raise the shoreline up to where the stresses on the migratory birds are lessened. And I only recently learned that the current lake level is several hundred feet below what it was during the last ice age, as determined by other tufa towers that were formed when Mono Lake was five times bigger (and much higher) than it is now.
This is one of the many places I want to revisit and explore in far more depth and detail in the future.