stone wall in a Roman sewer with dim yellow light, close shot

sewer stone wall rome ancient architecture roman history underground structure yellow light historic construction ruins carved sculpture civilization remnants archaeological site antiquity vestiges dim luminosity drainage system historical landmark masonry canalization engineering aesthetics architectural design ambient scene classical splendor cultural relic decoration heritage roman technology charm mysterious atmosphere treasure subterranean passage stonework imperial era old civilization empire underground network faint illumination antique remnants discovery subterranean tunnel sewerage carved stonework monument civilization history heritage find architecture roman ruins yellowish light artifact