In the 5th district, the hearth of Budapest, there is a very spacious square where you fcan't miss the Szent István Bazilika - Saint Stephen's Basilica.
We come out from the street where you saw these two nice houses and there it is, a huge monument.
Here you can even see the building of my previous post in the corner of the picture:
In the brochures, I didn't read anything about those two numbers you can see on the facade, but as it was year 2006, 1456 must represent the battle of Nándorfehérvár (today: Belgrade) where the Hungarians beat the Turks and so stopped them from their intent to invade the Christian Europe. And 1956 - well, one can find a lot of material about the Hungarian revolution of that year.
Have a look inside (last post on that page)