One weekend each year, Vilnius becomes open to everyone – in the real sense of the word. Then, the usually inaccessi-ble spaces open up to visitors. And so, both lovers of architecture and the city itself, get an opportunity to visit many impressive buildings of the capital of Lithuania and learn more about their history in spring. Guided tours attract large crowds to the urban buildings, erected over different periods of time for all kinds of different purposes. Some of these objects are so popular that you need to pre-register, and people who do not get to see them, immediately plan a trip for the next year. The Composers’ House, Lithuanian National Opera and Ballet Theater, and the real, functioning Lukiškės Prison are just a few hits of the open architecture weekend. First held in London in 1992, the event found itself well received in Vilnius in 2015. Visiting the buildings is free, so all you need is time and curiosity. Plan your route and watch the daily step averages grow.