Chartres Cathedral, Gothic architecture, intricate stone carvings, stained glass windows, grandiose entrance, pointed arches, ribbed vaults, flying buttresses, rose window, north transept, ornate chapels, towering spires, majestic nave, high ceiling, colorful frescoes, intricate mosaics, soft warm lighting, afternoon sunbeams, serene atmosphere, peaceful surroundings, lush greenery, blooming flowers.