The Madeleine church from Underground, or Life Below the Surface. Incidents and Anecdotes Beyond the Light of Day, Startling… https://www.rawpixel.com/image/572577/madeleine-church-parisFree Image from public domain licenseUnderground tunnel from Underground, or Life Below the Surface. Incidents and Anecdotes Beyond the Light of Day, Startling… https://www.rawpixel.com/image/571487/underground-tunnel-workersFree Image from public domain licenseThe Madeleine church from Underground, or Life Below the Surface. Incidents and Anecdotes Beyond the Light of Day, Startling… https://www.rawpixel.com/image/572649/madeleine-church-parisFree Image from public domain license