A popular South Slavic motif: a villa (essentially a South Slavic fairy) builds a wonderfully beautiful palace (or even a "city") on the clouds/on the branches under the clouds. Sometimes with three gates where the Sun, the Moon, etc. are located. Sometimes made of human bones.
⁂ My Telegram channel dedicated to my work and Slavic mythology is t.me/slavicmythology.
⁂ Another Telegram channel dedicated to the ancient history and mythology of humanity is t.me/coremythology.