The first Night of Museums took place in Berlin in 1997, and the concept spread through Europe like wildfire: currently over 120 major European cities (and many minor ones) organise their own museum nights. It's a pretty big deal, with thousands of people heading out to take part and visit museums big or small. Over 80 institutions and as many as 200 events take part on the special night in Wrocław. This is always a great opportunity to see the museums and experience the unique atmosphere that goes along with it.