Sheldon's seat on the train.
The imodium pills Sheldon took so that he wouldn't have to use the train restroom.
The train restroom.
Sheldon in Chicago.
Sheldon in Philadelphia.
Sheldon in New York.
Attached are the photos that Sheldon took on his six-week train trip in the summer of 2014. They were prepared and never used in the episode "The Locomotion Interruption".