Stonehenge
The sarsen circle with its continuous ring of lintels, the horseshoe of five trilithons and the solstice axis (reconstruction of the arrangement of c. 2500 BC).
The rules it illustrates
Joints of carpentry worked in stone. At Stonehenge each lintel is pegged to its uprights by a mortise-and-tenon joint and locked to its neighbours by tongue-and-groove joints, and each is curved to follow the circle: the joints of a timber frame reproduced in dressed sarsen.
Set the monument on the solstice axis. Orient the principal axis of the monument on the rising or setting of the sun at a solstice, so that the architecture frames it.
Where it appears in the book
In the styles Prehistoric and Megalithic.
In the chapters Post and Lintel, The Ancient World.