Giant Block Structures

This week, a new assemblage of giant cardboard blocks appears in our living room almost every day.  The first was a temple.  Then a giant skyscraper.  Next was a brick wall between the living and dining rooms, which Jonah flew through a-la superman (theme song and all).  He was a little scared when the blocks went boom!  Then followed a giant arch, which was perfectly sized for Jonah to walk through, but he was a little timid.  That's okay, because he wouldn't have been able to walk without Mommy right behind him.  And Mommy didn't fit so easily.  Then a ramp/jump for his big green ball, dominoes and a "sprawling" city.  Any nobody guessed it was Daddy's handiwork instead of Mommy's!