The two most important holidays in Estonia are the Christmas and the Midsummer Day (Jaanipäev in Estonian). For the Midsummer Day, 23rd and 24th of June are the official bank holidays, allowing the whole nation to prepare at 23rd, party the entire night, and recover the next day.
Everything people do at that day, is done with care and commitment. That includes the mandatory defining part of the MidSummer Day — the bonfire (Jaanituli in Estonian). Here is the one I checked in my neighbourhood:
For those who’d like to read more about the cultural background of Jaanipäev, Wikipedia gives a pretty nice overview.