Teien means Japanese garden and the museum is named so because the building is surrounded by a garden and sculptures.
Gallery
<gallery widths="200px" heights="200px" perrow="3">Image:Tokyo Metropolitan Museum entrance.jpg|Tokyo Metropolitan Museum EntranceImage:Teien_garden.jpg|Tokyo Metropolitan Teien Art Museum GardenFile:Teien Bijutsukan garden.jpg|Teien Bijutsukan garden</gallery>