Duo exhibition: Ali Artun & Ahmet Yiğider

SUBSTANCE Duo Exhibition, Ali Artun & Ahmet Yiğider, Galata Greek School, İstanbul – January/February 2026

“Substance is the nature of a thing—it’s essence. It is autonomous. The substance of architecture is not rooted in function; it is poetic, enchanted, and mysterious. Its symbols and meanings are limitless celestial numbers and forms. These symbols constitute a language, a grammar unique to architecture. For thousands of years, architecture has expressed itself through this language.”

TÖZ / SUBSTANCE is a conceptual inquiry into architecture as an autonomous language of form. The exhibition proposes an encounter with architecture beyond its conventional association with function—approaching it instead as a poetic, symbolic, and mysteriously alive system of expression.

The title draws from the Turkish word töz—the essence, the substance, the core nature of a thing. In this sense, TÖZ / SUBSTANCE considers architecture not as a discipline of utility, but as a language composed of symbols, numbers, and forms whose meanings extend beyond fixed interpretation. For thousands of years, architecture has expressed itself through such a grammar—one rooted in cosmic, mythical, and abstract thinking.

The structures presented in the exhibition resist rational order and functional logic. They are not conceived as spaces to inhabit, but as works that reclaim architecture’s earliest impulses—cosmic geometry, symbolic systems, and lyrical form. In this context, architecture emerges as an artistic field that precedes and exceeds its utilitarian role.

Ali Artun frames TÖZ as an architectural exhibition that diverges from the built environments that surround us. The works do not adhere to purpose, rationality, or use; they do not propose rooms, offices, or habitable structures. Instead, they seek to uncover the roots, the essence—the töz—of architecture itself.

Ahmet Yiğider’s sculptural practice extends this investigation toward human perception and existence. His works approach abstraction not as representation, but as a fundamental human intuition—a sensory mode through which being recognizes itself. Drawing from the interconnected realms of human, nature, and universe, the exhibition gestures toward a deeper, enduring search that has shaped human creativity across time.

TÖZ / SUBSTANCE unfolds as a space of encounter with traces of an ancient, collective memory—an architecture that is dreamlike, intuitive, and rooted in the symbolic imagination. Within this framework, form re-emerges as a timeless language that bridges past and present, rational and pre-rational, visible and imagined.

TÖZ / SUBSTANCE unfolds within the Galata Greek School in Istanbul, entering into dialogue with a building shaped by layered histories and cultural memory. Originally established in the early 20th century as a Greek educational institution and later restored as a cultural space, the structure carries traces of transformation, continuity, and collective heritage. In this context, the exhibition resonates with the building’s own temporal depth—positioning architecture not only as form, but as a vessel of memory, transmission, and enduring presence.