In the past few years, the weekend before the final one of the carnival period I wander around the streets of Metaxourgio.
That is the area of central Athens where all kinds of carnival lovers gather to celebrate. Firecrackers, music, drinking and dancing in all the streets of the area until night falls and we always end up in the central square where the maypole is installed. The fire is also burning there. Everybody dance around it and some brave ones even start jumping over it!
The party holds up until late. Do not leave early cause you will miss the best parts!