YUKIMI-
(Snow Lantern)
Snow Lanterns are reputedly so called because of the way they hold snow on the roof, though I have heard this queried
They are undoubtedly the most popular of the Japanese garden lanterns
They are positioned close to water to benefit from their reflection
Varieties are available with both hexagonal and round roofs
If you are to have only one lantern in your garden this has to be it
Click picture to enlarge