As every year on 28 October, Prague’s Municipal House will commemorate the anniversary of the founding of independent Czechoslovakia with a special Open House Day. Visitors will have a unique opportunity to explore the representative spaces of this remarkable Art Nouveau landmark free of charge, a building closely associated with key moments in Czech history. The tour route will lead through the ceremonial halls on the first floor, including Smetana Hall, the Mayor’s Hall adorned with decorations by Alfons Mucha, and a series of historic salons. The programme will also feature regular guided talks offering insights into the history of the building and its role in the establishment of Czechoslovakia. This Art Nouveau building from the early 20th century is linked to the declaration of independence in 1918. The tour will take you through the representative halls on the first floor — Smetana Hall — Confectionery — Slovácký Salon — Božena Němcová Salon — Oriental Salon — Grégr Hall — Palacký Hall — Mayor’s Hall — Rieger Hall — Sladkovský Hall. One of the most interesting salons is the Mayor’s Hall, whose artistic decoration is a highly valued compact work by the world-famous Alfons Mucha. Other artists who contributed to the decoration of the Municipal House include painters Mikoláš Aleš, Jan Preisler, Karel Špillar, Max Švabinský, František Ženíšek, and sculptors Josef Mařatka, Josef Václav Myslbek, Karel Novák, and Ladislav Šaloun. The building itself is the work of architects Antonín Balšánek and Osvald Polívka.