This dome contained the Moles’ main source of water and vegetation. The Parliament building comprised a lightweight metal roof capping an existing crater, the interior hollowed out to accommodate a pulpit and seating. A thirty-foot-wide boulevard of concrete encircled its exterior, in turn surrounded by a moat of fresh water. Only two feet deep, it glittered tropical blue under the dome lights. A stunted forest of modified fir trees filled the remaining space, with small circular playgrounds at each hour mark.