Abbey Church of St Denis, Gothic Revival style, medieval inspired, pointed arches, ribbed vaults, flying buttresses, stained glass windows, intricate stone carvings, grand organ pipes, solemn atmosphere, soft natural light, subtle shadows, warm beige stone walls, ornate pulpit, wooden pews, vibrant tapestries, grandiose altar, majestic nave, clerestory windows, rose window, north transept, apse, barrel vaults, triforium, dramatic verticality, serene ambiance, afternoon sunbeams.