London's Blackwall Tunnel, a subterranean passage beneath the River Thames, is greater than only a congested thoroughfare; it's a canvas upon which …
Source : https://www.ndtv.com/feature/ghost-haunting-londons-busiest-tunnel-for-over-50-years-all-we-know-6315217
Ghost Haunting London's Busiest Tunnel For Over 50 Years? All We Know – NDTV
