The new building of Museum of Polish History appears in a complicated historical neighbourhood as a connecting and corrective element. The museum building overflows under ground level, hangs over the Łazienkowska Route and grows into the Wisła scarp. It is not a narrow bridge yet a broad plateau,intersected with footpaths connecting the existing pedestrian routes of the district and protecting from the traffic fumes and noise. The neutral building does not expose the outside facades. Its function has been taken over by the inner facades set on both sides of the route. The design does not avoid the problem of a close distance to the noisy route, it opens up to it with its biggest glazing. The presence of the neverending motor traffic contemporizes the project and converts it into a living organism where changes can be noticed on a daily basis. The exterior of the museum flanks the historic plaza and - owing to its occupants - brings the whole urban complex back to life.