Tracery is the intersection in various forms of the mullions in the head of a window or screen.

Tracery

Tracery is the intersection in various forms of the mullions in the head of a window or screen.

Tracery is the intersection in various forms of the mullions in the head of a window or screen.

Tracery

Tracery is the intersection in various forms of the mullions in the head of a window or screen.

Tracery is the intersection in various forms of the mullions in the head of a window or screen.

Tracery

Tracery is the intersection in various forms of the mullions in the head of a window or screen.

Tracery is the intersection in various forms of the mullions in the head of a window or screen.

Tracery

Tracery is the intersection in various forms of the mullions in the head of a window or screen.

A rose window from the Bishop's Palace at Southwark. Rose windows fitted with stained glass are common in Gothic architecture during the fourteenth century. The illustrated rose window with hexagonal tracery is unusual in Gothic architecture.

Gothic Architecture Rose Hexagonal Window

A rose window from the Bishop's Palace at Southwark. Rose windows fitted with stained glass are common…

A fourteenth century spherical triangle viewed inside a church. The window is indented with a bottom part sloped to let sun light in.

Gothic Architecture Spherical Triangle Inside Window

A fourteenth century spherical triangle viewed inside a church. The window is indented with a bottom…

An outside view of the spherical triangle from a church. The window has three rounded parts in a shape of a triangle.

Gothic Architecture Spherical Triangle Outside Window

An outside view of the spherical triangle from a church. The window has three rounded parts in a shape…