Yongduam Rock and Yongyeon Pond
A large piece of volcanic rock said to be the solidified remains of Yimugi, a water dragon. Whilst the legends behind just how he got himself turned to stone in that position vary, it hasn't diminshed his influence, as the surrounding suburb is called Yongdam by extension: literally "Dragon's Head Rock". Just about 100m to the east one can find the lesser known, but probably prettier Yongyeon Pond, a picturesque canyon straddling a pleasantly turquoise pond with a pavillion perched overhead. Again, a dragon features heavily in the legendary history of this site, but simply that it visited. A festival is held here in May. If all this talk of dragons is making you want to sit on a horse for some reason, then there is an old guy out the front who aggressively and inexplicably offers this service for a fee. Both sites are lit up spectacularly at night.
Jeju Wooden Goverment Offices
A comparably nice set of historical buildings in central downtown Jeju City. What's unusual is the existence of a nicely landscaped square pond in the complex, and its tumultuous history of getting built in lieu of a well, destroyed due to an irrational hatred of noisy frogs and ultimately rebuilt.