The first thing you need to know about this long-running basement near Syntagma Square? It’s a legend on the Athens underground club scene. Once named “-40°C”, this was where Athens’ Russian crowd used to gather to reminisce about the motherland over movie screenings and vodka shots. But then it was discovered by DJ duo Amateurboyz and became a shrine for unfiltered, late night shenanigans. The second thing? It only opens on special occasions. So if you’re lucky enough to be in Athens for one of their pop-up parties, don’t miss it.