The Sistine Chapel has ceiling frescoes as well as altar frescoes showing Old Testament scenes. It uses fictive architecture to organize the stories. The altar is divided into three sections, telling the story of the Creations of the Heavens and Earth, the Creation of Adam and Eve, the Expulsion from the Garden of Eden, and Noah and the Great Flood. Nude youths (also known as ignudi) surround the frescoes, and prophets and sibyls are depicted in the spandrels. Prophets and sibyls were ancient seers who foretold the coming of Christ.
There are pendentives located in the four corners of the room depicting the Salvation of Israel. The Deluge is a fresco in which multiple small figures engaged in a complex narrative. The scene is split using water and sky into four parts: on the right there was a group of people hiding under a shelter to get out of the rain; on the left side people climb up the mountain to get away from the rising water; in the center a small boat is about to collapse, and in the background a group of men are building the ark. The Delphic Sibyl has a circular composition, with powerful arms, and elbows and knees spill out into the space. The Libyan Sibyl is in a contorted position that would be impossible to hold for a human.
Fresco
The art or technique of painting on a moist, plaster surface with colors ground up in water or a lime water mixture
Spandrel
An area between the extradoses of two adjoining arches, or between the extrados of an arch and a perpendicular through the extrados at the printing line
Extrados
The exterior curve or surface of an arch or vault
Barrel-vault
A vault having the form of a very deep arch
Fictive architecture
A way of exploring and testing alternative built forms and urban environments without the overhead of physically building and testing objects in real life
Altar
An elevated place or structure, as a mound or platform at which religious rites are performed or on which sacrifices are offered to gods, ancestors, etc.
Arched window
A window that is curved at the top
Tapestry
A fabric consisting of a warp upon which colored threads are woven by hand to produce a design, often pictorial, used for wall hangings, furniture coverings, etc.
Pendentives
A triangular segment of a spherical surface, filling in the upper corners of a room, in order to form, at the top, a circular support for a dome
Sculptural weight
The ability of a region or art element within a composition to draw attention to itself