We visited the National Bonsai & Penjing Museum at the National Arboretum, reputed to hold one of the finest collections of miniature masterpieces in North America, with bonsai originating from Japan and penjing from China. For a description of penjing, see http://en.wikipedia.org/wiki/Penjing

I don’t know what one calls this kind of display, but it includes not only plants but also a boatman, pagoda, bridge and house.

Miniature world in stone (1), posted earlier: