Opens with the quote, "'Wait!' the troll said, jumping in front of him. 'This is my toll bridge. You have to pay a penny to cross.'", from the fairytale "Three Billy Goats Gruff". There are also many similar plot themes to the tale.
"Grosszahn" is yet another German word which means "big tooth".
The interiors of the bar where the Reapers meet in "Mannheim, Germany" were actually shot in the historic Lotus Cardroom & Cafe in Portland, at the corner of SW 2nd and Salmon. Opened in 1924, the Lotus had a long history that included its owners getting busted for violating the Volstead Act in 1927, and for illegal gambling in the 1970s before it became the first legally licensed gambling site in Oregon a little later. Madonna, Hall & Oates, and George Clinton were said to have stopped by at one time or other. The Lotus also boasted a 30-foot cherry-wood bar built by the Brunswick Co. in Chicago in the 1880s, shipped around Cape Horn, and displayed in an establishment in Yakima, Washington before being purchased for the Lotus in the 1960s. (It is partly visible, glowing in reflected light at the center of frame as the second Reaper being sent to Portland by Yannick David Loftus ambles toward the camera in silhouette.) Also used for interior shots in Nameless (2013), The Lotus was closed Aug. 20, 2016 because the building it was in was scheduled for demolition to make way for a proposed 20-story boutique hotel.
When Nick calls and interrupts Monroe playing the cello, he is playing the same piece, at the same place, as when Nick interrupted him in an earlier episode.
All the pictures in Sal Butrell's office are of bridges.