Apocalypse: "[T]he complete final destruction of the world, especially as described in the biblical book of Revelation. The word is recorded from Old English, and comes ultimately, via Old French and ecclesiastical Latin, from Greek apokaluptein 'uncover, reveal'" ("Apocalypse")
Axis Mundi: "The central pivot of the earth or of the entire cosmos" ("Axis Mundi")
Cosmogony: "A cosmogonic myth or cosmogony is a particular culture's story of the creation" ("Cosmogonic Myths").
Cosmology: The study of the origins of the world system or world order: In religion and philosophy, the focus is on the system of beliefs by which someone views the world as an ordered place (cosmos). In science, it is the study of the origin, current development, and eventual end of the universe. In myth, cosmological myths are myths of the cosmos, the world of order, that include creation or cosmogonic myths (the origin of the world of order), flood myths (a temporary destruction/cleansing of the world of order), apocalyptic myths (the end of the world of order), and myths of the afterlife (that which follows the world of order, that otherworld).
Cosmos: "[T]he universe seen as a well-ordered whole" ("Cosmos, n.")
Hierophany: "(Gk., hieros, 'sacred', + phainein, 'to show') The manifestation of the divine or the sacred, especially in a sacred place, object, or occasion. Manifestations of some particular aspect may be named after the aspect revealed, e.g. theophany (of divinity), kratophany (of power)" ("Hierophany").
Imago Mundi: Image of the world, a symbolic representation of the ordered world or universe
Omphalos: "[T]he navel. Metaphorically, the centre of a geographical area, e.g. the sea, a city (= the agora), the world. Title to the last was claimed by Delphi, at least by early in the Classical period, and reinforced by identification with a solid object, namely an egg- (or navel-) shaped stone. Strabo gives the fullest description of the Delphic omphalos: it was covered by wreaths and had two images on it representing the two birds sent by Zeus, one from the west, one from the east, meeting at Delphi. This stone was in the temple. The marble stone seen by Pausanias--and preserved to this day--as a man-made object, the wreaths depicted in relief. It stood on the esplanade outside the temple" ("Omphalos").
Theophany: "[A] visible manifestation of God or a god to man ("Theophany n.")
Typology: "System of groupings that aids understanding of the things being studied by distinguishing certain attributes or qualities among them that serve to link them together into a closed set of items" ("Typology," World Encyclopedia).