On the aluminum cap atop the Washington Monument in Washington, DC are two words: Laus Deo. It is true that the words Laus Deo are inscribed on one face of the aluminum point which crowns the apex of the Washington Monument.ashington continues to Give Praise to God On the aluminum cap atop the Washington Monument in Washington, DC are two words: Laus Deo. No one can see these words. In fact, most visitors to the monument have no idea they are even there and...for that matter...probably couldn't care less!