Some of our favorite things about visiting London involve British humor – in particular, the ads we saw in the Tube and on city busses.

But fun can be found just about anywhere you look in London.

We also learned a few items of interest during our visit. First, Diana’s presence is still very much alive in the city. Nearly every day we saw a photo or likeness of her. As much as I still have a tender place in my heart for the Princess, I can only imagine how difficult this constant visual reminder is for her children, William and Harry. Probably another reason why Harry doesn’t mind leaving home and living in the U.S. for a while.

The Tube is absolutely massive. I studied maps of transit systems in Berlin, Hamburg and Stockholm before our visits. Once I saw how complicated the Tube is in London, I just downloaded an app. It’s more than I could mentally handle. Thank goodness for smart phones.

Finally, you are constantly being instructed to “Mind the Gap” at every train stop – because, well obviously, there is a gap between the train and the station platform just at the door – particularly if there is a bend in the track or you are in the lead or tail cars. Over and over again, we were told “Mind the Gap” until finally, Allita looked at me and said “Well, that explains ‘nevermind’.” At age 53, I had a lightbulb moment in the Tube in London shortly after my daughter had her own similar moment. If you “mind” the gap, then when you don’t need to “mind” it any more – it’s “nevermind”. Not to be confused with never mind. You should probably Google that.