In architecture, a bay is the space between architectural elements, or a recess or compartment. The term bay comes from Old French baie, meaning an opening or hole.
Lyme Park in Cheshire, England. The main facade is divided by pilasters into fifteen bays, equalling the number of windows.
Looking down the center aisle of the Saint Roch Parish Church of Lemery, Batangas, Philippines, the spaces between each set of columns and roof trusses are a bay
An interior bay, between the supports of the vaults, in Lyon Cathedral, France.
The Japanese ken and Korean kan are both bays themselves and measurements based upon their number and standard placement. Under the Joseon, Koreans were allocated a set number of bays in their residential architecture based upon their class.
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