The National Museum closes the top of Wenceslas Square, and the first thing to read on it is the stonework. Pale patches are set across the sandstone of the front where troops of the Warsaw Pact opened fire on the building in August 1968, apparently taking it for a government office or a radio station. The repairs filled the damage rather than recutting the surface, so the marks can still be traced from the pavement, one by one.
Inside, the building is organised around a staircase that climbs the full height of it to a domed hall at the top. Josef Schulz built all of it between 1885 and 1891, when Czech was still fighting for standing as a language of scholarship inside a German-speaking empire. The scale was deliberate. An unexploded bomb came through into the entrance hall in May 1945, during the Prague Uprising, so the front is not the only part of the house that has been repaired. Climb as far as the dome and you can stand in the gallery and look straight back down the slope of Wenceslas Square.