Two Green Line trains at University of Minnesota, Minneapolis, in 2015
...that the Metro Green Line connecting the downtown districts of both Minneapolis and Saint Paul is one of only six mass-transit rail lines in the United States that operates 24 hours a day, seven days a week?
One of the Hudson locomotives in Mercury service in 1939
A new boiler under construction at Meiningen in 2016
...that Dampflokwerk Meiningen in Germany is the only facility in Europe capable of constructing new steam locomotiveboilers up to modern standards of construction, performance, and safety?
The first car operated in subway service in the United States with its first crew, motorman James Reed and conductor George Truffant, in 1897
...that the first regularly scheduled subway service in the United States was a precursor to the MBTA Subway with a run through the Tremont Street Subway in Boston in September 1897?
The Mayiladuthurai–Coimbatore Jan Shatabdi Express at Mayiladuthurai Junction in 2009
...that pioneering steam locomotive builder Matthias W. Baldwin patented a method of maintaining and swapping out interchangeable fire grates with active fires on them?
A preserved Mason locomotive in Michigan
...that the steam locomotives built by Mason Machine Works in the 19th century were known by railroad engineers and operators to be the easiest engines to repair?
First tramload of cheese, butter and wool to Smithton on the Marrawah tramway
...that the first regularly scheduled train on the Marrawah Tramway in Tasmania, which was founded as a timber hauling line, carried nine tons of cheese and two tons of wool, skins and hides?
A Class 165 DMU on the Marlow branch line in 2006
...that the train that runs on the Marlow branch line in Berkshire and Buckinghamshire, England, is known as The Marlow Donkey although the exact derivation of the term is unclear?
Mansfield station in 2011
...that Mansfield, Massachusetts, and Kingston, Rhode Island, are the only two stations on the Northeast Corridor where the Acela reaches its top speed of 150 mph (240 km/h) on platform tracks?
...that the Parliamentary proposal in 1900 that led to the construction of Mære Station in Trøndelag, Norway, originally suggested two separate nearby stations?
A RENFE class 103 train on the Madrid-Barcelona line in 2012
An M1 on the Long Island Rail Road at Jamaica in 2005
...that the M1 and M3EMU cars built by Budd for use on commuter lines radiating out from New York City were the catalyst of change for their respective systems as the high-level boarding required all stations in the electrified zone to be rebuilt from 1966-1968?
Three of the four TE70-4S on their first day of service