Definition & Meaning of "triforium"

What is a "triforium"?

A triforium is a narrow gallery or walkway located above the nave of a church, typically situated between the main arches and the clerestory, which is the row of windows near the top of the walls. This architectural feature often consists of a series of arches or openings and may serve as a space for decorative elements, such as artwork or sculptures. The triforium enhances the interior design by adding visual interest and depth, while also providing additional light and ventilation. It is commonly found in Gothic-style churches, contributing to their overall grandeur and complexity.