The trip contained many have to see sights and sites. Probably the elevator from the second platform to the top of the Eiffel Tower would make the cut. But travelling is more than the things you can take a picture of. It's the little things that broaden perspectives. One sees more out there, so there's more to which one can relate. An example is how Jay and I can now refer to something using personalized jargon.
We were quite impressed by London's Underground system. Yet, we felt the line we needed to take to the place where we stayed for five nights was the most neglected tube line. Compared to the other, more beautifully-designed and better-maintained lines, the District Line seemed a bit overlooked. The trains were slower and older. The stations dirtier and less modern.
So, now when say something is like the 'District Line' we are trying to suggest it deserves more attention than it is receiving.