All those flags
On our first full day in Riga (11/11), we were surprised to see Latvian flags everywhere. At first we thought they were just very nationalistic, but we gradually realised it was some kind of public holiday.
Phyllis saw a woman in a car, and when watching the news in Latvian during the evening, she realised it had been the president on her way to some kind of parade.
And the next day, all the flags were gone, even from the trams.