Tall, narrow window typically associated with the Gothic architectural style.
Peristyle
Range of columns surrounding an architectural feature.
Peristylium
Redirected to peristyle.
Piano nobile
Main floor of a Palladian or Georgian building.
Pilaster
Decorative architectural element used to give the appearance of a supporting column, to articulate an extent of wall.
Porte-cochère
From the French meaning "coach door", also known as a coach gate or carriage porch, a covered porch-like structure at a main or secondary entrance to a building that gives access to a vehicle while providing arriving and departing occupants with protection from the elements.
Priest hole
Secret hiding places in the homes of prominent Catholics to hide priests from persecution.
Proscenium
Part of a theatre stage in front of the curtain.
Proscenium arch
Redirected to proscenium.
Quoin
Any external angle or corner of a structure.