While riding home from the gym one day, I saw a semi trailer parked in front of a small strip mall.
Loads of school kids were milling around.
Curious, I had to check it out. Turns out it is a free traveling Mexican history museum, part of the Mexican Bicentennial celebration.
No one objected when I climbed the stairs, entered and listened to the tour guide.
I thought it was a pretty nice thing for a small Mexican town.