Mine is the Bloom from Torment: Tides of Numenera. I love the fleshy bits. I love the everyday gruesome horror becoming an everyday thing for the people who live there. I love the literally organic surroundings. It’s just by far my favorite location in any game ever. :)
The Floating Magical Kingdom of Zeal from 12,000 BC in Chrono Trigger. They could achieve almost anything, but their greed, prejudice, and arrogance doomed them to a terrible fate that nearly killed all of humanity.
Great music - https://youtu.be/BXo3DrXHY8w Amazing art, writing, and aesthetic design. - https://chrono.fandom.com/wiki/Zeal