Open House Vilnius opens more than 50 exceptional buildings for tours and exploration. Highlights include Teatras Vilniaus klasika ir Tsekh meno galerija (Vilnius Classical Theatre and TSEKH Art Gallery), which are housed in one of the most markedly changed buildings in Vilnius; Nacionaline dailes galerija (National Gallerry of Art), whose clean and timeless forms are reminiscent of advertising screens; and  Viesbutis Grata by Centrum Hotels (Grata Hotel), whose iconic colorful postmodern interiors will soon be undergoing renovations.