The Third Rail

 is a location in Goodneighbor. It is notable as the place to meet Robert Joseph MacCready, you can also meet Magnolia here and date her after a series of persuasion checks. The bar is said to be owned by John Hancock.

Layout
The Third Rail is a subway station, initially there's a small area with a bathroom to the right and the bouncer Ham. Down the stairs there's the bar, off to the right there's a "back room" where you can find MacCready. The bar is tended by a Mister Handy with a british accent named Whitechapel Charlie

When you first enter the town, you will be approached by a thug who will try to shake you down for protection money. A successful speech check will allow you to enter for free or you can exit the speech menu and an NPC will kill him for you and allow you free entry.

Inhabitants

 * Robert MacCready in the backroom.
 * Ham the doorman.
 * Barnes and Winlock pay a visit to Robert MacCready the first time one visits the establishment.
 * Magnolia the singer.

Notable loot

 * Live & Love – On a toilet in the right stall. When you enter the area, turn right to reach it.
 * 1 Nuka-Cola Quantum, 2 Nuka Cherry and the Gwinnett Pilsner recipe holotape on the bar behind Whitechapel Charlie.

Quests

 * Clean out the Goodneighbor Warehouses - One needs to buy an alcoholic beverage from Whitechapel Charlie to iniate the quest.
 * The Silver Shroud - One needs to ask Whitechapel Charlie to know where Kendra is hiding.

Appearances
The Third Rail appears only in Fallout 4.

Behind the Scenes
There is in fact a subway station (a.k.a. a "T" stop) below the Old State House in Boston. As the blue tile on the walls indicate it's a stop on the Blue line (but instead of being named Scollay Square it's actually called simply "State").

Третий рельс