TREN
| Date | Clue |
|---|---|
| 2017-11-25 | Autobús alternative |
| 2014-05-29 | Mode of transportación |
| 2013-10-20 | Mexican transportación |
| 2012-09-29 | Autobús alternative |
| 2010-04-30 | Tampico track transport |
| 2009-11-14 | One way around Spain |
| 2008-02-09 | It's pulled by una locomotora |