They soar impossibly skyward, their spires pierce clouds, and their stained glass transforms sunlight into kaleidoscopes of color. Gothic cathedrals represent medieval architecture's greatest ...

Editor’s Note: Mark Foster Gage is an American architect and founder of Mark Foster Gage Architects in New York. He is also a professor of architecture at Yale University School of Architecture.

What began as an appreciation of Gothic stained glass, and its various arches and geometric patterns soon became a deep dive into architecture as a function and reflection of thought and philosophy.