![...an outdoor museum
featuring 43 railroad engines, cars...
...an outdoor museum
featuring 43 railroad engines, cars...](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
...an outdoor museum
featuring 43 RAILROAD engines, cars...
The Big Bang Theory Season 4, Episode 6
![You'd have to drive a railroad spike into
his brain for me to beat him at checkers.
You'd have to drive a railroad spike into
his brain for me to beat him at checkers.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
You'd have to drive a RAILROAD spike into
his brain for me to beat him at checkers.
The Big Bang Theory Season 2, Episode 11
![Well, Sheldon was going on and on
about time zones and railroad schedules,
Well, Sheldon was going on and on
about time zones and railroad schedules,](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
Well, Sheldon was going on and on
about time zones and RAILROAD schedules,
The Big Bang Theory Season 9, Episode 16
![...a hot dog stand
in a converted railroad dining car.
...a hot dog stand
in a converted railroad dining car.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
...a hot dog stand
in a converted RAILROAD dining car.
The Big Bang Theory Season 4, Episode 6
![In 1944, the Pacific Railroad
built number 6131,
In 1944, the Pacific Railroad
built number 6131,](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
In 1944, the Pacific Railroad
built number 6131,
The Big Bang Theory Season 7, Episode 15