Ecumenopolis

An ecumenopolis (plural ecumenopoleis) was a type ofplanet, or in some cases a moon, whose entire surface was covered with a single worldwide city.The Human species had become advanced enough to transform Coruscant into an ecumenopolis as early as a hundred thousand years prior to the Battle of Yavin. By 4000 BBY, Taris became one, having built itself up during the course of only a single century of prosperity; this world, however, still had its oceans, meaning only its landmasses had been completely built over. One such example of a lunar ecumenopolis was Nar Shaddaa, the largest moon that orbited the adopted homeworld of the Hutts, Nal Hutta. As far back as the Jedi Civil War and possibly long before, it had become entirely covered in kilometers-tall buildings, many of the lower areas of which had become quite decayed.