4 Views of a Secret. This tunnel running from Essex Street to the Tabernacle Church under Washington Street was used to hide the loading of contraband from the smuggling tunnels in Salem. The first track on the frog entering the tunnel was built by George Peabody whose plan has bankrupted our country every 20 years up to 2008. The second track on the frog was owned by Thomas Perkins the opium dealer who would smuggle runaway slaves to his sweatshops in Lowell. Eight tunnels met in the back of the Kinsman Building (Opus Underground) and one left the front to this tunnel in the photos. Kinsman was superintendent of the Eastern Railroad owned by Peabody.
For more info read Salem Secret Underground: The History of the Tunnels in the City and Sub Rosa by Chris Dowgin available at Wicked Good Books, Jolie Tea, Remember Salem, Barnes & Noble, and Amazon.com.