Here are the trains in action at Memorial City Mall...
And more trains...
You can see all these trains in action at the HTOS permanent location in Memorial City Mall in the hallway immediately west of the inside-the-mall entrance to Target. Here it is...
This photo was taken a few months ago just as HTOS was moving into this spot next to the entrance to Target. However, if you don't know where to look, it is hard to find. However, the train guys have spruced things up a bit...
Here is a MAP of the mall. Note the 'Houston Tinplate Society' west of the inside entrance to Target in the blue section. HTOS is just west of 'Milano Men's' and can be accessed from the parking lot off Gessner north of Kingsride.
This is a really great place, and long-time mass-transit advocate and METRO buff Dominic Mazoch introduced me to this place. Pretty cool!