I just remembered a further example of our "stumbling into" rather than planning on special events in Europe.
For three consecutive World Cups - 1998, 2002, and 2006 - we were in Europe for a chunk of the matches. Coming from the US where the 1994 WC was held, it was at least now on our "radar", but being in Europe during the various matches, It became a regular "thing" for us to run across bars or outdoor events showing the games. A great deal of energy, for sure.
In 1998 when we were in Vienna, I remember wondering what the huge outdoor screen was for, and then realizing it was for the Austrians to watch the WC matches and cheer on their team.
I remember being in Paris in 2002 when an Africa team won their match and being near the Eiffel Tower as car after car drove by with their horns honking, their national flags waving, and folks cheering. Not the final game and likely the only advanced them so far, but man were they excited and the energy was great.
Another time, in 2006, we were there for the finals, and had come from Italy in an Italian plated rental car. That was a big game - Italy v France and played in Germany - so tons of fun around it - leading up to and the eventual down to the wire penalty kicks. We drove back to Italy the following day, and there was even some horn blowing from other cars seeing the Italian plates - pro and anti depending on the other driver. Again, not planned but super fun to see the games especially when the locals were in the hunt for the title.
We're doing less summer travel to Europe nowadays, so not had a repeat of being in Europe for one of their biggest events, but it was definitely fun to be there when you could really see how exciting it was for the locals watching the matches.