I don't know why, but I really like escalators.  I always have.  Here's a picture of one of my favorite escalators.  It's in the subway station at Porter Square and it's HUGE.  If I weren't with a group of people, I would have played on this for quite a while.  
I also really like water fountains... the decorative kind, not the drinking kind (well, I guess those are nice too).  Someday, I would love to see a waterfall down an escalator going up!  Some may say it's like ice cream on pizza, sometimes two great things don't mix, but I would argue that in this case... they can!!!