I read a book about the Revolutionary War called "Washington's Crossing" by David Hackett Fischer. The wrap-around cover of the book is, appropriately, the iconic painting "Washington Crossing the Delaware" by Emanuel Leutze (https://en.wikipedia.org/wiki/Washington_Crossing_the_Delawa...).

I learned that the actual painting was nearby in NYC at The Met. When a friend visited, I wanted one of my goals was to go to The Met and see the painting. I entered the American Wing close enough to closing time that I worried I may not find the painting in time. I started wandering, turned a corner, and sat dumfounded starting at the very thing I was looking for, sitting 21 feet in width at the end of the hall.