That’s the city of Shanghai including Pudong’s 13 million across the Huangpu River.  All in miniature. The whole floor of a large museum of 5 or 6 floors.  Whole museum devoted to the urban planning of Shanghai.
A large exhibit was devoted to the Tap Water Department.  That’s a thing we largely take for granted. Not in Shanghai. The hotel provides a new toothbrush every day for the intestinally uninitiated. Thankfully, we had no issues.  Pun unintended.
A funny thing happened on the subway ride between museums with our friends.  Of the five of us, I was the slowest–lagging just enough behind that beggars were targeting me, so friend’s husband began walking behind me.  So thankful he did. When were about to get on a full subway train, I was right behind George but the warning began and the doors closed on George’s arm reaching to pull me in. I still have visions of his arm sticking out the closed door before he could pull it inside. 
Antonio and I were left on the platform. I was very grateful that he was with me. We waited only a few minutes for the next train with me standing behind him with one finger looped over his belt so the crowd could not separate us.
When we got on the next train, we had to stand and hang onto an overhead loop because it was full, too.  When a seat opened up near us, Antonio asked if I would like to sit down.
I answered, “Let’s leave it for some old lady. I’d rather stay right beside you.”
When we reached our stop and the doors opened, it was really good to see George and the rest of our party sitting with anxious faces on a bench right in front of our door.