A yurt is a small, round and generally portable living structure favored for centuries by nomadic Turkic peoples stretching from Mongolia to Central Anatolia.
There are several sites you can order the materials to build a yurt, giving you a small, separate structure from you home you could use for a variety of purposes.
I”d like to have one actually. I wouldn’t want to live in it full time but they’re pretty cool. Knew a guy who had one and camped in it year round at a park with electricity because it was cheaper than an apartment.